Dalton's Law of Partial Pressures - Liquid demo

Gay-Lussac's Law

Charles' Law water bottle demo

Pringles in a vacuum pump

Boyle's Law Fun Demos

Basketball animation of gas laws

Effusion of a gas

Diffusion of a gas

The molar mass of gas particles influences how quickly they can diffuse.

Diffusion of Food Coloring

Food coloring added to a glass of water will slowly spread out to areas of "less concentrated" color.

Carbonated Ice Cream Recipe

Have you tried fizzy ice cream? It has the flavor and bubbles of an ice cream float without the soda. It's an extremely easy recipe to try. It doesn't even require a freezer; you just need dry ice.

Recipe here!

Chrome vs. chromium?

Have you ever wondered what the difference is between chrome and chromium? Chromium is an element. It is a hard, corrosion-resistant transition metal. Chrome, which you may see as decorative trim on cars and motorcycles or to harden tools used for industrial processes, is an electroplated layer of chromium over another metal.

Read more!

Converting units of pressure

Here is a table complete with all pressure units and conversion factors to change units.

Here is an online conversion that lets you put in your number and units given for pressure, then converts for you to any new units.

Measuring gas pressure

A manometer is an device employed to measure pressure. There are a variety of manometer designs. A simple, common design is to seal a length of glass tubing and bend the glass tube into a U-shape. The glass tube is then filled with a liquid, typically mercury, so that all trapped air is removed from the sealed end of the tube.

This method for measuring pressure led to the use of millimeters of mercury (mm Hg) as a unit of pressure. Today 1 mm Hg is called 1 torr. A pressure of 1 torr or 1 mm Hg is literally the pressure that produces a 1 mm difference in the heights of the two columns of mercury in a manometer.

Try reading a manometer here.

Some background info...

Here is some information on the scientists that put together the various gas laws:

Robert Boyle

Jacques Charles

Joseph Louis Gay-Lussac

John Dalton

Paul Clapeyron

Gas Law Simulation

Use this simulation to observe how amount of particles, volume, and temperature all affect the pressure of a gas in a container.

Gas Laws Info

The main distinguishing property of gases is their uncanny ability to be compressed into smaller and smaller spaces. Gases are also the least complex state of matter. Don't get it wrong, just because they are the simplest doesn't mean that they are not one of the most interesting and useful states of matter.

This website includes details about all the gas laws, as well as a glossary.