Which of the following represents the suitable condition for the liquefaction of gases?
- ALow temperature, high pressure
- BLow temperature, low pressure
- CHigh temperature, high pressure
- DHigh temperature, low pressure
Show answer and explanation
Correct answer: (a) Low temperature, high pressure
Explanation
Low temperature lowers molecular kinetic energy, letting intermolecular forces condense the gas.
High pressure forces molecules closer, aiding the gas-to-liquid transition; liquefaction works only below the critical temperature (Tc).