Question

A real gas can be liquified by the application of pressure when its temperature is _________.

• A. above the room temperature
• B. above the inversion temperature
• C. at the Boyle temperature
• D. at the critical temperature

Answer 1

The correct option is D at the critical temperature

A real gas can be liquified by applying pressure on it only when it is at its critical temperature. A gas cannot be liquified even at higher pressure if the gas temperature of gas is more than its critical temperature.