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Vapor Pressure Pressure exerted by vapor of several organic substances is demonstrated using barometers. Molecular models of the substances are shown.
Gases |
Phases / Phase Transitions / Diagrams |
Physical Properties
Vapor Pressure: Molecular Size The measurement of pressure exerted by a vapor is demonstrated using barometers. Vapor pressure varies with the strength of the intermolecular forces in the liquid.
Gases |
Liquids |
Noncovalent Interactions |
Phases / Phase Transitions / Diagrams |
Physical Properties
Vapor Pressure of a Mixture: Raoult's Law The measurement of pressure exerted by a vapor is demonstrated using barometers. Vapor pressure varies with the strength of the intermolecular forces in the liquid.
In this section we will look at vapor pressure of mixtures. We can calculate the vapor pressure of a mixture using Raoult's law.
Gases : GasGramMixPressure (5 Variations)
4.80 g of CH4 is mixed with 17.6 g of CO2 in a 9.00 L flask at a temperature of 67.2oC. What is the total pressure of the flask? (Assume there is no reaction.)
Gases |
Chemometrics
Gases : GasMoleMixPressure (5 Variations)
What is the pressure exerted by a mixture of gases in a 40.0 L container at 127oC if the mixture contains 0.100 mol O2, 0.400 mol CH4, and 0.500 mol SO2?
Gases |
Chemometrics
Gases : GasLaws (2 Variations)
Note: This is a calculation type question. If you exit the quiz without submitting it and you do not save an answer before exiting the quiz, the values in the question may change when you enter the quiz again.
You purchase a propane tank that can hold gas safely up to a pressure of {x} atm. When the tank contains 100. grams of propane at {y}°C, the gas exerts a pressure of {z}atm. What is the highest temperature to which the propane can be heated safely? (Report your answer in Kelvins.)
Enthalpy of Vaporization and Vapor Pressures: An Inexpensive ApparatusRubin Battino, David A. Dolson, Michael R. Hall, and Trevor M. Letcher Describes an inexpensive apparatus for the determination of the vapor pressure of a liquid as a function of temperature for the purpose of calculating enthalpy changes of vaporization. Also described are a simple air thermostat and an inexpensive temperature controller based on an integrated temperature sensor. Battino, Rubin; Dolson, David A.; Hall, Michael R.; Letcher, Trevor M. J. Chem. Educ.2007, 84, 822.
Gases |
Laboratory Equipment / Apparatus |
Lipids |
Phenols |
Physical Properties |
Thermodynamics |
Liquids |
Phases / Phase Transitions / Diagrams
Using Dalton's Law of Partial Pressures To Determine the Vapor Pressure of a Volatile LiquidFred R. Hilgeman, Gary Bertrand, and Brent Wilson This experiment, designed for a general chemistry laboratory, illustrates the use of Dalton's law of partial pressures to determine the vapor pressure of a volatile liquid. Hilgeman, Fred R.; Bertrand, Gary; Wilson, Brent. J. Chem. Educ.2007, 84, 469.
Critical Temperature and PressureEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
