Why is potential energy = 0 for ideal gases and not for non ideal gases ?
The reason is in my textbook that average between the atoms increases or decreases due to bonds being broken.So , my Q is that in case of ideal gases. Let us take two gases , $H_2$ and $He$. So , here. For hydrogen , I can say that bonds of H and H can break and average separation can increase or decrease.p even when if I consider hydrogen as ideal gas. I checked online also if I can consider $H_2$ has ideal gas and it said yes. Whereas , in case of He. I am not getting with what He would form bond with and average separation between atoms would change.