When the pressure of 2 litres of O2 gas is doubled and its temperature is also doubled from 300K to 600K, the final volume of the gas is
4 litres
20 litres
40 litres
2 litres
When the pressure of 2 litres of O2 gas is doubled and its temperature is also doubled from 300K to 600K, What is the final volume of the gas?