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

Options

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

Answer

D

Explanation

An ideal gas cannot be liquified at any value of P and T.