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Chemical Engineering - Mass Transfer - Discussion

Discussion Forum : Mass Transfer - Section 7 (Q.No. 42)
Mass Transfer
42.
In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is
equal to the heat of formation of surface compound.
equal to the heat of wetting.
zero.
called integral heat of adsorption.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
KRR said:   3 years ago
The enthalpy of condensation (or heat of condensation) is by definition equal to the enthalpy of vaporization with the opposite sign: enthalpy changes of vaporization are always positive (heat is absorbed by the substance), whereas enthalpy changes of condensation are always negative (heat is released by the substance).

The heat released by a unit mass of initially dry soil when immersed in water.
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