In this animated object, students examine what happens when electrons share molecules.
Gas Volume vs. Pressure (Boyle's Law)
By Dr. Miriam Douglass, Dr. Martin McClinton
Boyle's Law states that gas volume varies inversely with the pressure at constant temperature and is described by the equation PV = constant. An example of a sample of gas at two conditions of P and V is used to illustrate the law.
Measuring Gas Pressure
Learners convert units used to designate pressure. Units for pressure are atm, mm Hg, torr, and pascal.
The Effect of Temperature on the Vapor Pressure of a Liquid
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners examine how vapor pressure is calculated. The vapor pressure of a liquid increases with increasing temperature. If the heat of vaporization and the vapor pressure at one temperature are known, the vapor pressure at a second temperature can be calculated.
The Hydrogen Bond
By Jill Larson
In this interactive object, students examine a type of chemical bond known as the "hydrogen bond."
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