In two vessels of 1 L each at the same temperature 1 g of H2 and 1g of CH4 are taken, for these

KE=32kTwhere k is constant∴KE∝THere the temperature is same. Hence, for 1 g of H 2 and 1 g of CH4which are taken in two vessels. of 1 L each at same temperature, the kinetic energy per molwill be the same.