Which of the following are the most favourable conditions for liquefying a gas ?
[amp_mcq option1=”Low pressure and high temperature” option2=”Low pressure and low temperature” option3=”High pressure and high temperature” option4=”High pressure and low temperature” correct=”option4″]
This question was previously asked in
UPSC CAPF – 2019
– Low temperature reduces the kinetic energy of molecules, allowing attractive forces to overcome disruptive thermal motion.
– Every gas has a critical temperature above which it cannot be liquefied by pressure alone, regardless of how high the pressure is. Liquefaction is only possible at or below the critical temperature.