Uncertainty Principle..?

Question

The atoms of a solid possess a certain minimum 0 point energy even at 0K, while no such restrictions hold for the molecules of an ideal gas. How does the Uncertainty Principle explain these statements?

Answer 1

Ideal gases don't exist. (Hence the name, "ideal".) The uncertainty principle need not apply to a theory in a realm outside of its applicability. When a physical gas is at low pressure and high temperature, (certainly not 0K!) its behavior correlates with that of an ideal gas.

In other words, as you approach 0K, any real gas will BECOME a solid . . .