Hydrogen has two stable isotopes, 1H and 2H, with atomic masses of 1.0078 amu and 2.0141 amu,

Question:

Hydrogen has two stable isotopes, 1H and 2H, with atomic masses of 1.0078 amu and 2.0141 amu, respectively. Ordinary hydrogen gas, H2, is a mixture consisting mostly of 1H2 and 1H2H. Calculate the ratio of rates of effusion of 1H2 and 1H2H under the same conditions.