Question

State two conditions necessary to liquefy a gas ​

Answer 1

Answer:

The dew point is the temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%. ... For example, a temperature of 30 and a dew point of 30 will give you a relative humidity of 100%, but a temperature of 80 and a dew point of 60 produces a relative humidity of 50%.

Answer 2

Explanation:

Low temperature and high pressure are the two main condition for the liquefaction of gases. The pressure and temperature which are applying will depend on the molecular force of the gas molecules.