An ideal gas obeying kinetic theory of gases can be liquified, if
(a)Its temperature 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

Options

A. Its temperature 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

Ideal gas has no force of attraction and has no volume for molecules. Hence, it cannot be liquified at any T and P.