Ideal gases are boring. By definition, they don't do anything. They don't interact (even the picture of molecules bouncing off of each other in the balloon is nonideal), they don't do any chemical reactions, they just bounce around inside of a container. Boring. What makes chemistry an interesting subject are the interactions between molecules and the reactions that molecules undergo. In fact, much of the rest of thermodynamics is just inventive ways of adding interactions and chemical reactions into the ideal gas picture. Look at the components in the gas on the left and explore the ways in which gases can depart from ideality.