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.
