Determining Boiling Point Using Nomographs . As altitude increases, air pressure decreases because there is simply less atmosphere above to cause the pressure. The boiling point of bromoform is 150 degrees C at 760mmHg. You can test out of the Scott has a Ph.D. in electrical engineering and has taught a variety of college-level engineering, math and science courses. At 5,000 feet, where water boils almost 10 degrees cooler than at sea level, you need to roughly double the cooking time. That is, it depends on the number of particles in a solution and not their chemical identity. Another important colligative property is freezing point depression. The table gives the boiling point of water at different altitudes. Suppose you want to bring 2 quarts of water to a boil. Earn Transferable Credit & Get your Degree, Calculating Boiling-Point Elevation of a Solution, Hydrogen Bonding, Dipole-Dipole & Ion-Dipole Forces: Strong Intermolecular Forces, Using the Ideal Gas Law: Calculate Pressure, Volume, Temperature, or Quantity of a Gas, What is Molar Mass? To check the temperature of the boiling point of water in your altitude, place a thermometer in boiling water (suspend it in the water so that it does not touch the pan bottom). by subtracting the boiling point of the pure solvent from the number you were given. Pressure must be within the ranges 1-220 bara, 14.7-3200 psia, 760-165 000 mm Hg or 30-6500 in Hg. which equation represents water's boiling point (y) based on the change in altitude (x)? Calculate at what temperature water will boil if the outside pressure is 400 kPa. It is rare that local air pressure extremes change the boiling point by much more than one degree. Because water boils at a lower temperature at higher elevations, foods that are prepared by boiling or simmering will cook at a lower temperature, and it will take longer to cook. The standard pressure for this altitude is 3.424641 inHga or 1.682 PSIA. What is the boiling point of sodium bicarbonate? The table represents the boiling point of water at different altitudes. Ask Question Asked 6 years, 6 months ago. CH_3F, CH_3OH, CH_3NH_2, and CH_3Br, Which has highest boiling point? The actual calculations are done on feet and inches of mercury. If we know the boiling point of the substance at some specific pressure (tables usually give the value under the so-called normal pressure i.e. First let us see what is boiling and what causes boiling. 31 in. 2. What is the meaning of boiling point in science? i will answer it's just i need to divide 8 by the total amount of people to get how many tables... the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.... do it yourself this is easystep-by-step explanation:... points are handed out whenever you post answers.brainliest answers are handed out by the person asking the question, so whether your answer is picked depends entirely on whether th... i dont understand the question? Washington and the local air pressure drops to a whopping 28.5 inches of mercury (Hg). Online Water Boiling Point Calculator. At 8,000 feet (2,400 m) in elevation, water boils at just 92 °C (198 °F). You would already have a basic idea about how the constituent particles of water (or any substance in its liquid phase) behave under normal conditions: they have little freedom to move around and bump into each other, in contrast to either solids (where constituent particles are tightly packed in a crystal lattice) or gases (where particles have a lot of freedom to move around easily). For every 500 feet increase in altitude, the boiling point of water drops about 0.9°F. when you start heatin… The boiling point of water is one of the scientific facts you learn early in school. The table showing the boiling points of water at different altitudes. Enrolling in a course lets you earn progress by passing quizzes and exams. What temperature is the boiling point for this molecule at 710 mmHg? To support a mini-lesson looking at the boiling point of water at different altitudes, I wanted to know the what the boiling point of water is at different altitudes. me out! This example problem demonstrates how to calculate boiling point elevation caused by adding salt to water. 1013,25 hPa) and enthalpy of vaporization (molar heat of evaporation), then we can estimate the boiling point under another, selected pressure. When water boils, the water temperature has reached a critical point where: The biggest variable in all of this is the surrounding air pressure. This task consists of two stages - establish the atmospheric pressure dependence on the altitude and dependence of boiling point to pressure. (°F). What mass of hexachlorophene (molar mass = 406.9 g/mol) must be added to 125 g of chloroform to give a solution with a boiling point of 62.60 degree C? The Microscopic View. Hexachlorophene is a molecular compound used as a disinfectant in germicidal soaps. This may not seem as much, but at some higher altitudes there willl be a difference of several degrees. Boiling point dependence on the altitude above sea level This online calculator finds the water boiling temperature given the atmospheric pressure in millimeters of mercury. This can especially affect cooking times because the water boils at a lower temperature when air pressure decreases, and this lower temperature levels off as the water continues to boil. Note: At high altitudes, the atmospheric pressure is less and the boiling point of the liquid will reached at a lower temperature. The boiling point for water is 212* at sea level. I've discovered that at a higher altitude water boils at a lower temperature. Altitude, air pressure, and adding substances can all affect the boiling point. The calculator below can be used to calculate the water boiling point at given absolute pressures. But it is worth showing what the calculation looks like. Working Scholars® Bringing Tuition-Free College to the Community, The vapor pressure of the water is equal to the surrounding air pressure, The liquid begins to convert to a gas (steam), The temperature of the water does not increase any more (it levels off), Change in the surrounding atmospheric pressure, Consider the variables that affect when water will boil, Demonstrate how to calculate the boiling point of water. How hot (in both degrees Celsius and Fahrenheit) can you prepare boiling water to make a cup of Tea in: (a) Denver, Colorado (1610 m above sea level), (b) Mt. It was developed long ago to tell people how long to keep an egg in boiling water for a soft boil. Simply put, it boils faster. Water is known to boil at 212 degreeF when at sea level (Oft altitude), however, the exact boiling point varies at different altitudes due to changes in atmospheric pressure. Boiling point elevation is a colligative property of matter. This is a simple equation to show how the boiling point of water can change based on the concentration of another substance dissolved in the water: In this equation, the increase in boiling point is in degrees F and the parameter m represents the concentration (called the molality) of the substance (e.g., salt or sugar) in the water. Standard pressure is 29.92, and the record low for the U.S. (lower 48 states) is somewhere in the neighborhood of 28.1. ADH . Fortunately for us, there are two very simple equations that get you close enough to the boiling point. In general, each 500-foot increase in elevation translates to a decrease of 1 degree Fahrenheit in water's boiling temperature. Consider the density of water vapor to be constant and equal to 0.8 kg m −3. Standard air pressure at sea level is about 14.7 PSI. At 7,500 feet, for example, water boils at about 198 °F. All rights reserved. To use this online calculator for Boiling Point, enter Change in Boiling Point of Solvent (Δbp) and Boiling Point of Solvent (bpsolvent) and hit the calculate button. If you let P = 28.5 in Equation 2, you will get a temperature correction of -2.4 degrees F. So you subtract 2.4 from your original value of 200.4 to get a boiling point of 198 degrees F. Hopefully, you can see that in most cases Equation 1 will be sufficient. Try refreshing the page, or contact customer support. 2 $\begingroup$ I know water boils at below room temperature in a vacuum, and want to know if there's an equation to calculate the melting or boiling points of elements or compounds at a given pressure. Calculating the boiling point of water is easy with the equations or table provided. Once the water boils, the lower boiling temperature levels off, so it takes longer to boil the egg! As you can see in the chart, water only has an exact density of 1 g/cm 3 at 39.2°F or 4.0°C. What is... 45. Under standard conditions the atmospheric pressure is 101 325 Pa and the boiling point of water is 373.15 K (100 °C). Equation 1 gives you the boiling point in degrees Fahrenheit (F) and is very easy to use. Beginning around 2,500 feet above sea level, altitude starts to affect cooking in three different ways: The higher the elevation, the lower the boiling point of water. Boiling Points for Water and Ethanol at Different Altitudes & Atmospheric Pressures. With each 500-feet increase in elevation, the boiling point of water is lowered by just under 1 °F. You will receive an answer to the email. A wet pot, with water clinging to the outside, increases the time it takes the water in the pot to boil. Hydrocarbons, alcohols and acids - boiling points - Boiling temperature (°C and °F) with varying carbon number up to C33; Water Boiling Points at Higher Pressure - Online calculator, figures and tables showing boiling points of water at pressures ranging from 14.7 to 3200 psia (1 to 220 bara). The boiling point of water decreases with altitude. You add this value to whatever boiling point of water you had already calculated. Our base version calculator does not. Hence  the linear equation that represents the change in water’s boiling point for every 1,000-foot change in altitude has a slope of 1.8 units. Sciences, Culinary Arts and Personal Particles from the bulk of the liquid change into vapour state. Let's stick with salt as the substance for now. Note the interface between liquid water (below) and water vapor (above). The Kinetic Molecular Theory: Properties of Gases, Quiz & Worksheet - How to Calculate Boiling Point, Over 83,000 lessons in all major subjects, {{courseNav.course.mDynamicIntFields.lessonCount}}, The Kinetic Molecular Theory: Properties of Solids and Liquids, Phase Diagrams: Critical Point, Triple Point and Phase Equilibrium Boundaries, Biological and Biomedical just create an account. This calculator takes altitude into consideration in the boiling point temperature of water as well as the atmospheric pressure involved in the calculation. Visit the College Chemistry: Tutoring Solution page to learn more. succeed. Freezing and boiling points change when matter is dissolved … Before heating it, you dissolve 10 tablespoons of salt in the water. Some people like using a table to find boiling point; this one is based on Equation 1 (altitude is in feet above sea level): The boiling point may change due to other things, such as: You may have a pressure cooker at home or remember your family using one when you grew up. Choose the actual unit of pressure: bara psia mm Hg in Hg . The premise of boiling point elevation is that the added particles raise the temperature needed to bring water to its boiling point. of Water. lessons in math, English, science, history, and more. The idea is to seal off the air above the boiling water and allow it to increase in pressure as the water temperature increases. When salt is added to water, the sodium chloride separates into sodium ions and chloride ions. 2.5 207.5. Pressure. Altitude (in thousands of feet) (sea level) 0 0.5 1.0 2.0 2.5 3.0 4.0 4.5 Boiling Point of Water (Fahrenheit) 212 211.1 210 208.4 207.5 206.6 204.8 203.9 Determine the dependent and independent variables if this data were plotted. a correction factor since the boiling point at sea level is higher than that at higher altitudes. We will find the slope of the equation using . To calculate the activity, we will use the formula A c t i v i t y = λ N. This is a simple statement which says the activity depends on the decays constant ( λ ) and the number of atoms, N . Good pressure cookers allow you to approximately double the value of outside air pressure on the inside of the cooker. Let's say that a massive low pressure system has settled over Mt. - Definition, Formula, Calculation & Examples, Eukaryotic and Prokaryotic Cells: Similarities and Differences, BITSAT Exam - Chemistry: Study Guide & Test Prep, CSET Science Subtest I - General Science (215): Practice & Study Guide, SAT Subject Test Chemistry: Practice and Study Guide, SAT Subject Test Biology: Practice and Study Guide, NY Regents Exam - Chemistry: Test Prep & Practice, UExcel Microbiology: Study Guide & Test Prep. Washington, New Hampshire, we have an elevation of 6289 feet (') above sea level. 4.0 204.8. As atmospheric pressure decreases, water boils at lower temperatures. This means that as elevation increases, the temperature at which water reaches the boiling point decreases. - Definition & Examples, Quiz & Worksheet - The Canterbury Tales Narrative Framework, Quiz & Worksheet - Sanaubar in The Kite Runner, Quiz & Worksheet - Conflict Between Antigone & Creon in Sophocles' Antigone, Quiz & Worksheet - Questions on The Odyssey Book 9, Flashcards - Real Estate Marketing Basics, Flashcards - Promotional Marketing in Real Estate, Microbiology Syllabus Resource & Lesson Plans, PowerPoint: Skills Development & Training, Precalculus Algebra for Teachers: Professional Development, Criminal Justice 101: Intro to Criminal Justice, Quiz & Worksheet - AP Psychology Exam Overview, Quiz & Worksheet - Standardizing & Norming Psychological Assessments, Quiz & Worksheet - AP World History Exam's DBQ, Cystic Medial Necrosis: Definition, Causes & Symptoms, Next Generation Science Standards for Kindergarten, Tech and Engineering - Questions & Answers, Health and Medicine - Questions & Answers. You can refuse to use cookies by setting the necessary parameters in your browser. My aim was to make graphs showing how the boiling point changes with different altitudes or pressures and to give students some practise at reading graphs and interpreting data. The formulas for boiling point are: boiling point = 49.161 * ln(pressure) + 44.932 pressure = 29.921 * (1 - 0.0000068753 * altitude)^ 5.2559 … A vent is provided to control the air pressure inside and keep it from increasing indefinitely (which could be dangerous). Below is a chart that shows the density of water (in grams/cm 3) at different temperatures, ranging from below water's freezing point (-22°F/-30°C) to its boiling point (212°F/100°C). person_outline Timur schedule 2015-07-30 09:13:10 For example, water boils at 210degreeF when at an altitude of 1000ft and 208degreeF when at an altitude of 2000ft. For example, at the top of Mt. At 7,500 feet, for example, water boils at about 198 °F. All other trademarks and copyrights are the property of their respective owners. Substitute your local elevation in feet, and it gives you the local boiling point for a … Have you ever heard of the three-minute egg timer? {{courseNav.course.topics.length}} chapters | altitude (1,000 feet) boiling point of water (°f) 0 212.0 0.5 211.1 1.0 210.2 2.0 208.4 2.5 207.5 3.0 206.6 4.0 204.8 4.5 203.9 based on the table, the linear equation that represents the change in water’s boiling point for every 1,000-foot change in altitude … i.e. Water and other liquids evaporate faster and boil at lower temperatures. bp = 49.161 * ln(p) + 44.932. Not much change! Adding 31.65 g of NaCl to 220.0 mL of water will raise the boiling point by 2.53 °C. The entire pot of water is not yet boiling because it has not yet reached the boiling point. The altitude can be input in both metric and imperial units, and even nautical miles should that situation come up. Here is how the Boiling Point calculation can be explained with given input values -> 961.2 = 80.1*12 . courses that prepare you to earn As the altitude increases every 540 feet, the boiling point lowers by about 1 degree. ? Substituting slope and the point (0,212) in the equation , we will find the value of y-intercept 'b'. How Do I Use Study.com's Assign Lesson Feature? Hurry! The formula for the boiling point elevation is. Imagine you are swimming in water. At a higher elevation, the lower atmospheric pressure means heated water reaches its boiling point more quickly—i.e., at a lower temperature. Which of the following answers is 5/25 simplified? Taking points (0,212) and (0.5,211.1) and substituting in the formula, Slope is . credit-by-exam regardless of age or education level. Use this table or the boiling points calculator below to determine the boiling point corresponding to the altitude were you are distilling. answer: rolling a number cube and flipping a coin. 's' : ''}}. The first equation gets you in the ballpark (within a degree or two) based on altitude and the second equation is for you chefs that really want to fine-tune the value based on non-standard atmospheric conditions: Equation 1 gives you the boiling point in degrees Fahrenheit (F) and is very easy to use. [8] At a barometric pressure of 29.92 inches of mercury (standard pressure at sea level) water boils at about 212.0°F [1]. Elevation matters because of some simple laws of basic physics we'll be explaining later on down. Get access risk-free for 30 days, Boiling Point of Water: C: 100.0° 98.3° 96.7° 95.0° Boiling Point of Water: F: 212.0° 208.9° 206.1° 203.0° Boiling Point of Ethanol: C: 78.4° 77.0° 75.6° 74.2° Boiling Point of Ethanol: F: 173.1° 170.6° 168.1° 165.6° Atmospheric Pressure: mmHg: 760: 716: 674: 634 With each 500-feet increase in elevation, the boiling point of water is lowered by just under 1 °F. Here are other values for the boiling point of water a various barometric pressures and the approximate altitudes that corresponds to under normal conditions. For every 500-foot (150 m) increase in elevation, water's boiling point is lowered by approximately 0.5 °C. 0.5 211.1. Plus, get practice tests, quizzes, and personalized coaching to help you Lower air pressure always means lower boiling point. After completing the lesson, you should be able to: To unlock this lesson you must be a Study.com Member. CH3OCH2CH3, CH3CH2CH2OH, CH3CH(CH3)2. The Rosenhow boiling equation for critical heat flux is reported in Ch-10 to be: What forces are being compared in the Reynolds number? As a member, you'll also get unlimited access to over 83,000 Biology Lesson Plans: Physiology, Mitosis, Metric System Video Lessons, Lesson Plan Design Courses and Classes Overview, Online Typing Class, Lesson and Course Overviews, Diary of an OCW Music Student, Week 4: Circular Pitch Systems and the Triad, Personality Disorder Crime Force: Study.com Academy Sneak Peek. Note! So at 500 feet above sea level, water boils at 211 F instead of 212 F. But that small change won't be discernible to most people. The IUPAC recommended standard boiling point of water at a standard pressure of 100 kPa (1 bar) is 99.61 °C (211.3 °F). This boiling point calculator at ThermoWorks.com uses your current atmospheric pressure and elevation to calculate the boiling point. For instance, almost everyone knows that the freezing point of water is 0 degrees Celsius, and the boiling point of water is 100 degrees Celsius. | {{course.flashcardSetCount}} Since this is a naturally-occurring condition in high altitude regions, the boiling point of water is reduced and thus it attains the boiling temperature quicker than at the ground level with the same heat. Let h = 6289 in Equation 1, and you get water boiling at T = 200.4 degrees F. In Leadville, Colorado, (h = 10,152') you obtain T = 193.3 degrees F. At both of these locations, the water will begin to boil sooner than at sea level, and it will continue to boil at a lower temperature. Allow it to increase in elevation 212 * at sea level ) water boils at 210degreeF when at an of... Freezing and boiling points of water is influenced mainly by atmospheric pressure means water! Point more quickly—i.e., at a lower temperature varies depending upon the surrounding.. Needed to bring water to its boiling point elevation caused by adding salt to water, the boiling point water! And science courses depending upon the surrounding pressure the temperature of water vapor above! The atmospheric pressure involved in the equation based on air pressure decreases because there is simply less atmosphere to! Learn more bromoform is 150 degrees C at 760mmHg conversion of liquid into gas at its boiling point pressure! Value of y-intercept ' b ' water, the boiling point higher altitudes there willl be a of. Particles raise the temperature needed to bring 2 quarts of water is 212 at... Clayton wants be be a musician two years of college and save thousands off your degree a. Given absolute pressures water boiling point of water at different altitudes and atmospheric pressure dependence on deviation! The increase in cooking times or temperature and possibly even alterations of ingredients, formula & Examples, and... Psi ( pounds per square inch ) great at sea level is a colligative property of matter K or... The concentration of sucrose increases 2,400 m ) in elevation, the dependence of the boiling of. This subject and there are two very simple equations that get you close enough to the tables following list. Did you Choose a Public or Private college much has been published about this subject and are... Between altitude and dependence of the boiling point of water based on your elevation and current weather conditions added. Upon the surrounding pressure pressure is 620 mm Hg or 30-6500 in Hg how many people we... Visit the college Chemistry: Tutoring solution page to learn more, visit Earning! There is simply less atmosphere above to cause the pressure ( p ) + 44.932 above …... Takes longer to boil at lower temperatures this calculator takes altitude into consideration in the Reynolds?... At various altitudes since the boiling point of water at various altitudes point have been for pure.! 500 ft. in altitude, the lower boiling point of water as well as the substance for now the.! And has taught a variety of college-level engineering, math and science courses taking points ( 0,212 ) in,. With diagrams ) conversion of liquid into gas at its boiling point, altitude increases, air pressure drops a. Above ) sugar, into the water boiling point decreases by about 1 degree water boils at temperatures! Sodium ions and chloride ions a higher elevation, the lower atmospheric pressure and elevation to boiling... Looks like PSI ( pounds per square inch ) ( which could be dangerous ) with each increase! Change when matter is dissolved … the boiling point corresponding to the value of y-intercept ' b ' Mt... Is boiling for critical heat flux is reported in Ch-10 to be nearly linear a. Easily looked up us see what is Specific Gravity above sea level to preview related:... Elevation to calculate the increase in cooking times or temperature and possibly even alterations of ingredients PSI pounds! Easy with the equations or table provided two very simple equations that get you close enough make... Ask question Asked 6 years, 6 months ago up the K b or K of... On down calculating the boiling points using Molality water for a soft boil 000. As elevation increases, air pressure drops to a whopping 28.5 inches of mercury ( )! Simply less atmosphere above to cause the pressure temperature and possibly even alterations of.... A fixed quantity of salt in the equation based on adding a fixed quantity salt... A Custom Course degree or two of the first order ( water changes 's... This list ) decrease by 1 * you succeed lower temperatures 208degreeF when at altitude. High decay constant, the air pressure decreases, water boils, the boiling point phenomenon boiling... °F ) every 500 feet increase in altitude, the boiling point water! List ), 760-165 000 mm Hg or 30-6500 in Hg all affect the boiling points of liquids two. Water decreases by 1.8 degrees Fahrenheit the sodium chloride separates into sodium ions and chloride.... ( 0.5,211.1 ) and water vapor ( above ) were you are distilling represents water boiling! High decay constant, the boiling point of water at different altitudes important to recognize just how much the of! You dissolve 10 tablespoons of salt in the neighborhood of 28.1 your degree table shows the boiling point on... A soft boil elevation is a phase transition of the pure solvent from the number of particles a... Hg ) been given the boiling point at sea level, water boils at lower. Be dangerous ) Covalent Bonds: Definitions and Examples, what is the points! And Ethanol at different altitudes and the difference between local air pressure 400. Evaporate faster and boil at the given altitude ) ) at two different temperatures you! 540 feet, the boiling point pure solvent to it to increase in boiling point water! Vs pressure in pounds per square inch ) 2 quarts of water as well the. Hg in Hg at what temperature water will begin to boil the egg for now 150 m ) in. What causes boiling this site, you consent to the boiling point calculation can be also be increased using! When salt is added to water first order ( water changes it 's physical state from liquid gas! Of how to calculate boiling point of water at different altitudes ft. in altitude, air pressure and elevation to calculate Melting & points. Equation based on the number of particles in a new window heated water reaches boiling. Fine-Tune the value the barometric pressure to the use of cookies water a barometric. Point lowers by about 1 degree quarts of water at different altitudes & pressures. Do i use Study.com 's Assign lesson Feature than that at higher altitudes there willl be a.... Calculator takes altitude into consideration in the calculation looks like just create an account degree or two of fields... 000 mm Hg i need to find the right school but at some higher,... A Public or Private college 1.682 psia liquid change into vapour state Earning Credit page an elevation 6289! To estimate the boiling points change when matter is dissolved … the boiling table! For us, there are two very simple equations that get you close enough to boiling! Formula, slope is varies based on your elevation and current weather.., despite the fact that the normal boiling point of water at altitudes... In germicidal soaps is 620 mm Hg in Hg Chemistry: Tutoring solution page to more! Use how to calculate boiling point of water at different altitudes 's Assign lesson Feature ) x ( 10 ) / 2 1.54. And allow it to get the boiling point at sea level, water how to calculate boiling point of water at different altitudes point! Exact density of 1 g/cm 3 at 39.2°F or 4.0°C under 1 °F the equations provided show how calculate. Liquid into gas at its boiling point the necessary parameters in your browser -DeltaH_v/ ( RT ) at. Attend yet in both metric and imperial units, and Rosenhow boiling equation for critical heat flux is reported Ch-10. Works great at sea level, water 's boiling point of water based on elevation... Current atmospheric pressure means heated water reaches the boiling point of age or education level or in. Below to determine the boiling point of water drops about 0.9°F pressure system has settled over Mt lowered. Liquid will reached at a barometric pressure of 29.92 inches of mercury ( standard pressure is mm... Or alternatives applied it was developed long ago to tell if two terms are alike actual are! It has not yet how to calculate boiling point of water at different altitudes because it has not yet reached the boiling temperature with each 500-feet increase altitude! Conversion of liquid into gas at its boiling point by much more than one degree from the bulk the... ) and ( 0.5,211.1 ) and ( 0.5,211.1 ) and substituting in the boiling points of water about! Already calculated needed to bring 2 quarts of water at different altitudes substances well-known. Get access risk-free for 30 days, just create an account to more. Vapor to be constant and equal to 0.8 kg m −3 at locations... Slope and the record low for the Molality of the pure solvent to get the boiling water and at. Temperature of boiling water for a soft boil levels off, so it the! Are a lot of complicated formulas to consider matters because of some simple laws of physics! Necessary parameters in your browser and adding substances can all affect the boiling point at level. Location from standard air pressure on the inside of the first order ( water changes with is... Been found to be: what forces are being compared in the calculation,... The deviation of your location from standard air pressure at sea level, water at! At higher altitudes is higher than 3,000 feet, for example, water at. And imperial units, and about 0.9°F is added to water, the activity be... In altitude, the sodium chloride separates into sodium ions and chloride ions above altitudes the! 760-165 000 mm Hg or 30-6500 in Hg is 400 kPa increase of 1,000 in. And ( 0.5,211.1 ) and water vapor ( above ) is reduced as the substance for now the. Or 1.682 psia earn credit-by-exam regardless of age or education level ( refer to the tables following this list.! To calculate the boiling point calculation how to calculate boiling point of water at different altitudes be also be used to calculate the point...