A gas diffuses 5/3 faster than carbon dioxide. Which gas might it be? a. O2 b. N2 c. CO d. He e. CH4Please explain how this is so.

Expert Answers
ndnordic eNotes educator| Certified Educator

According to Graham's Law, the ratio of the diffusion of the two gases is inversely proportional to the molar masses of the two gases.

5/3 = (M/44)^.5

.36 = M/44

M = 16 as the molar mass of the other gas.  That would be CH4