Microscopic Model of Gases
Micro View of Matter, Kinetic Theory of Gases
Matter comes in three main states, solids, liquids, and gases. The kinetic theory of gases models a gas as a collection of seldom interacting particles, flying around in random directions. The molecules of the gas have a range of speeds, due to their occasional interaction. For a complete energy analysis this motion of the particles of the gas needs to be accounted for.
State Variables & Equations of State, Ideal Gas
The ideal gas law is a model that explains the observed relationships between thermodynamic quantities, such as temperature and pressure, of a lot of different gases. It was discovered experimentally, which is why it's called a law. For a gas to behave ideally, the particles the gas is comprised of must not interact, meaning they do not run into each other. This means that not all gases behave ideally and there is a degree to how ideal a gas is.
