If pressure is doubled for a fixed mass of a gas, its volume will become :

1. 4 times
2. 1⁄2 times
3. 2 times
4. No change

1⁄2 times

Reason — According to Boyle's law volume of a given mass of a dry gas is inversely proportional to its pressure at constant temperature.

Hence, if pressure is doubled for a fixed mass of a gas, its volume will become 1⁄2 times.