An equimolar mixture of ( ) and ( ) is allowed to effuse through a small orifice into…
CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance
Problem
An equimolar mixture of CH4(g) (M=16g mol−1) and SF6(g) (M=146g mol−1) is allowed to effuse through a small orifice into vacuum at 350 K. After a short time, 10\% of the original CH4 molecules have escaped. Approximately what percentage of the original SF6 molecules has effused during the same time interval?
(a) About 10%
(b) About 1%
(c) About 3%
(d) About 30%