Q.

In Langmuir’s model of adsorption of a gas on a solid surface 

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a

The mass of gas striking a given area of surface is propotional to the pressure of the gas

b

The mass of gas striking a given area of surface is independent of the pressure of the gas

c

The adsorption at a single site on the surface may involve multiple molecules at the same time

d

The rate of dissociation of adsorbed molecules from the surface does not depend on the surface covered

answer is A.

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Detailed Solution

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Langmuir's adsorption is monolayer process. According to the adsorption, the mass of gas striking a given area of surface is proportional to the pressure of the gas.

xm=kp1+kp

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