If you need to know about gases, you’ve come to the right place with these tutorials! (Updated 2-10-16)
- Kinetic molecular theory: To understand the properties of gases, we need to understand how they behave on an atomic level. Don’t worry: You won’t have to count all of the atoms.
- Basic gas laws: Boyle, Charles, and Gay-Lussac all came up with laws to describe gases. That Avogadro guy did, too. But if you really want to save time, learn about the combined gas law.
- The ideal gas law: This really gets to the heart of how gases behave. Though the derivation involves statistical mechanics, we won’t deal with that here (you’ll hear about it enough in grad school – trust me).
- Gas stoichiometry: What do you do when liters and grams are put into the same problem? Why, you read this tutorial, of course.
- Let loose the gases! This tutorial covers the main gas laws and gas stoichiometry – also from my unpublished textbook.
- States of matter and phase changes: In addition to the topics named here, it also discusses the kinetic molecular theory of gases, Graham’s law, and RMS velocity. I’m putting it here, for these reasons, and because I want to.
Supplemental videos: These videos are all over at the amazing Crash Course YouTube channel. I didn’t make these, though I wish I did.
- Crash Course Chemistry: The ideal gas law – Our friend PV = nRT gets his own video.
- Crash Course Chemistry: Ideal gas problems – Let’s start solving gas law problems!
- Crash Course Chemistry: Partial pressures and vapor pressures – Dalton said to say hi.
- Crash Course Chemistry: Passing Gas – Effusion, diffusion, and the velocity of a gas. These ideas are key when understanding the kinetic molecular theory.
- Crash Course Chemistry: Real gases – What happens when the world isn’t ideal?