The theoretic volume and pressure of a gas at zero Kelvin are zero.
Moreover, there is zero kinetic energy present in the gas. This is
because at zero Kelvin, none of the particles are moving.
First, since the temperature is 0 kelvin the pressure and volume of gas is zero as there is no presence of it, but instead solid. The process is as the temperature becomes colder that gas changes to liquid, then to solid.
