Vapor Pressure

CCA! Volume 5

Home

Table of Contents

Keyword Index

Textbook X-ref

About CCA!

Vapor Pressure

Pressure exerted by vapor of several organic substances is demonstrated using barometers. Molecular models of the substances are shown.

Making Barometers

View Movie
2.7 MB
47 seconds

View Slides
28 Slides

Mercury barometers are constructed so that they can be used to determine and compare vapor pressures of liquids. The barometers read 736 mmHg.

Vapor Pressure: Water and Ethanol

View Movie
4.7 MB
95 seconds

View Slides
28 Slides

Barometers are shown that read 736 mmHg. Water is injected into one and ethanol is injected into the other, and the vapor pressure of each liquid is determined. Molecular models of water and ethanol are shown and hydrogen bonding is illustrated for each molecule.

Vapor Pressure: H-Bonding vs. Dipole-Dipole Attraction

View Movie
3.2 MB
65 seconds

View Slides
15 Slides

Molecular models of butanol and diethyl ether are shown and compared. Butanol and diethyl ether are injected into separate barometers and their vapor pressures are measured.

Vapor Pressure: Molecular Polarity

View Movie
2.5 MB
46 seconds

View Slides
9 Slides

Chloromethane and dichloromethane are injected into separate barometers and their vapor pressures are measured. Molecular models of chloromethane and dichloromethane are shown.

Vapor Pressure: Molecular Size

View menu
2 movies

The vapor pressures of pentane, hexane, and heptane are compared. The vapor pressures of methanol and ethanol are compared. Molecular models of the compounds are shown.