Question

alka wanted to liquefy petroleum gas. suggest a method to help her liquefy it quickly​

Answer 1

Answer:

by increasing pressure and reducing temperature

Explanation:

as when we increase pressure the atoms of gas gets attracted towards each other.

and when we decrease temperature the gas cools down and forms liquid

Answer 2

L.P.G. which is used for cooking. In the cylinder petrol is in liquid form. When it is lighted it becomes gas.