Question

In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is

a.

equal to the heat of formation of surface compound.

b.

equal to the heat of wetting.

c.

zero.

d.

called integral heat of adsorption.

Answer: (b).equal to the heat of wetting.

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Q. In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is

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