Question

A sample of N2 gas (2.0 mmol) effused through a pinhole in 5.5 s. It will take __________ s for the same amount of CH4 to effuse under the same conditions.

Answer 1

t directly proportional to $\sqrt{M}$

(5.5/x) = ($\sqrt{28/16}$ )

(5.5/x) = 1.32

x= 5.5/1.32 = 4.17s