A 3.0-L sample of helium was placed in a container fitted with a porous membrane. Half of the helium effused through the membrane in 24 hours. A 3.0-L sample of oxygen was placed in an identical container. How many hours will it take for half of the oxygen to effuse through the membrane?
A)8.5 h
B)12 h
C)48 h
D)60. h
E)68 h

Question

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The Answer of A 3.0-L sample of helium was placed in a container fitted with a porous membrane. Half of the helium effused through the membrane in 24 hours. A 3.0-L sample of oxygen was placed in an identical container. How many hours will it take for half of the oxygen to effuse through the membrane?
A)8.5 h
B)12 h
C)48 h
D)60. h
E)68 h

A 30-L Sample of Helium Was Placed in a Container Fitted