Question

A sample of n2 effuses in 255 s. how long will the same size sample of cl2 take to effuse?

Answer 1

For this problem, we use Graham's Effusion Law to find out the rate of effusion of chlorine gas. The formula is as follows:

R₁/R₂ = √(M₂/M₁)

Let 1 be N₂ while 2 be Cl₂

255/R₂ = √(28/70.8)
Solving for R₂,
R₂ = 405.5 s

Thus, it would take 405.5 s to effuse chlorine gas.