A problem from a chemistry textbook is posed on the screen. Sal solves the problem, which attempts to calculate vapor pressure using the Ideal Gas Law. The rate of evaporation of water given a specific volume, temperature, and pressure...

Vapor pressure is the focus of this chemistry video. Sal explains that when molecules are "sticking together," a substance takes on a liquid or solid form. However, when kinetic energy increases, the molecules are forced apart, allowing...

Exactly what causes the the pain you feel when diving to the deep end of a pool? Find out with this short video that explores the physical laws governing the behavior of gases and the ways they affect marine life...

In his previous videos, Sal showed students how to calculate how much energy is needed to change various amounts of water from state to state when the atmospheric pressure is constant. In this video, he shows students how to use phase...

What exactly is the difference between Celsius and Fahrenheit? Watch this video to find out. Sal identifies and defines the Celsius and Fahrenheit scales, assesses the differences, and then labels boiling and freezing on each of the...

A problem from a chemistry textbook is posed on the screen. In this problem, ethanol is used to illustrate the amount of energy, in joules, required to change a substance from a liquid to a gas. The boiling point of ethanol is given, and...

A website giving an explanation to the process of osmosis with a PowerPoint presentation, a video of a lab, and a video of an answer to a review question. The PowerPoint presentation reviews the process by which water diffuses through a...