At a given temperature,nitrogen gas effuses 1.194 times faster than which of the following gases?

Question

Quizplus · Accepted Answer

The rate of effusion of a gas is inversely proportional to the square root of its molar mass. Therefore, we need to find the gas with a molar mass that is 1.194 times less than that of nitrogen gas (28.02 g/mol).

Fluorine has a molar mass of 18.998 g/mol, which is much smaller than that of nitrogen. Bromine has a molar mass of 79.90 g/mol, which is much larger than that of nitrogen. Xenon has a molar mass of 131.29 g/mol, which is even larger than bromine.

Chlorine has a molar mass of 35.45 g/mol, which is closer in mass to nitrogen, but it is still smaller than nitrogen.

Argon has a molar mass of 39.95 g/mol, which is slightly larger than that of chlorine, but still smaller than that of nitrogen. Therefore, at a given temperature, nitrogen gas effuses 1.194 times faster than argon.

At a Given Temperature,nitrogen Gas Effuses 1