An ideal gas obeying the kinetic theory of gases can be liquefied if

Options

A. Its temperature is more than its critical temperature `(T_(c))`
B. Its pressure is more than its critical pressure `(P_(c))`
C. Its pressure is more than `P_(c)` at a temperature less than `T_(c)`
D. It cannot be liquefied at any value of `P` and `T`

Explanation

Ideal gas has no force of attraction and has negligible volume. Hence, it cannot be liquefied at any `T` and `P`.