Question

Mention the physical quantities and manner in which these need to be altered for liquefying gases.

Answer 1

pressure and temperature.

Answer 2

Hye dear,

● Answer -
Temperature and pressure

● Explanation -
- We need to decrease temperature and increase pressure in order to liquify gases.
- This helps to decrease kinetic energy of gas molecules.
- High pressure decreases intermolecular distance which increses intermolecular force of attraction.
- These changes in turn liquify/compress a gas.

Hope this helps you...