MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryGaseous stateGraham's Law of Diffusion and effusion
If some moles of O2 diffuse in 18 sec and same moles of other gas diffuse in 45 sec then what is the molecular weight of the unknown gas? (a) 18 x (b) 45 x (c) x (d) x
Answer
A
Explanation
2 2 2 2 / / O O O X X X X O r V t M r V t M 2 2 2 2 45 18 32 45 32 18 x X X O O X X t M t M M M