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The substance moisture exerts equilibrium vapour pressure equals to vapour pressure of liquid is ________

(a) Bound moisture

(b) Unbound moisture

(c) Equilibrium moisture

(d) None of the mentioned

I got this question in an international level competition.

The above asked question is from Moisture Concept of Drying in section Drying of Mass Transfer

1 Answer

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by (39.8k points)
Right option is (b) Unbound moisture

The best I can explain: The saturated surface moisture is unbound moisture which equals the equilibrium vapour pressure.

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