A sample of N₂ effuses in 255 s.How long will the same size sample of Cl₂ take to effuse? A)406 s B)247 s C)645 s D)155 s E)388 s

Question

Quizplus · Accepted Answer

The rate of effusion for a gas is inversely proportional to the square root of its molar mass. N₂ and Cl₂ have the same molecular formula and therefore the same molar mass. This means they should have the same rate of effusion. Since the given sample of N₂ effuses in 255 s, the same size sample of Cl₂ should also take 255 s to effuse. Therefore, none of the other answer choices are correct.

A Sample of N2 Effuses in 255 S

A Sample of N₂ Effuses in 255 S