Multiple choice

The temperature above which further liquefication of gas is not possible by applying pressure is called

  1. critical pressure

  2. critical temperature

  3. critical volume

  4. critical constants

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 It may be defined as the temperature above which a gas cannot be liquefied by application of pressure. A gas will remain as gas above critical temperature and in order to liquefy it by compression, it has to be cooled to its critical temperature. Critical temperature is denoted by Tc.