Chemical Thermodynamics Question 170

Question: Evaporation of water is [CPMT 1973; DPMT 1982; MP PMT 1989; MP PET 1999]

Options:

A) An endothermic change

B) An exothermic change

C) A process where no heat change occurs

D) A process accompanied by chemical reaction

Show Answer

Answer:

Correct Answer: A

Solution:

Change of liquid to vapour takes energy in the form of heat so it is endothermic reaction.



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