A) the rate of dissociation of adsorbed molecules from the surface does not depend on the surface covered
B) the adsorption at a single site on the surface may involve multiple molecules at the same time
C) the mass of gas striking a given area of surface is proportional to the pressure of the gas
D) the mass of gas striking a given area of surface is independent of the pressure of the gas
Correct Answer: C
Solution :
The adsorption of a gas is directly proportional to the pressure of the gas. Hence, the mass of gas striking a given area of surface is proportional to the pressure of the gas.
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