In this physics lesson, learn the basics of gas pressure, including: how it works, how it's measured, and how to convert from one gas pressure unit to another.

Gain an understanding of the ideal gas law, learn its equation and the value of the ideal gas constant, and see how to use it to solve a chemistry equation.

In this lesson, the Science Classroom describes the basics of four intermolecular forces: London dispersion, ion-dipole, dipole-dipole, and hydrogen bonding.

Discover how the kinetic molecular theory of matter is used to describe the states of matter: solids, liquids, and gases, and learn about ideal gas laws.

The Science Classroom offers a simple explanation of Dalton's law of partial pressures, and walks through math problems to help you solve for partial pressures.

Discover the basics of effusion and learn how to use an equation for Graham's law of effusion to compare the rates of movement of gases in an example problem.

Learn about vapor pressure and how it relates to boiling, discover how substances change from liquids to gases, and grasp the science of boiling water.

The Science Classroom demonstrates how to read a phase diagram, breaks down the special states of matter, and shares the two ways to create a change of state.

The Science Classroom describes the relationships between the variables used to describe gases, including pressure, volume, temperature, and amount.