Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of________________?
Correct answer: D. Complete wetting
- A. Mixing
- B. Adsorption
- C. Wetting
- D. Complete wetting
Explanation
Heat of complete wetting is the enthalpy change when a unit mass of solid is wetted until adding more liquid causes no further thermal effect. The term heat of wetting alone may describe the process generally, but “sufficient liquid” identifies complete wetting.
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