Question

A gaseous mixture containing He, CH4, and SO2 was allowed to effuse through a fine hole. Then find what molar ratio of gases coming out initially? (Given mixture contains He, CH4, and SO2 in 1:2:3 molar ratio)

• A. 1:1:1
• B. 1:2:3
• C. 1:2:4
• D. 2:2:3

Hint:

The effusion rate of gases is inversely proportional to the square root of their molar masses, and the ratio of effusing gases will match the molar ratio.

Answer 1

The Correct Option is B

Effusion rates are inversely proportional to the square root of the molar masses of the gases. Given that the molar ratio of gases is 1:2:3, the effusion rate will follow this ratio.