JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Heat of reaction

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

    A)                 An endothermic change

    B)                 An exothermic change

    C)                 A process where no heat change occurs

    D)                 A process accompanied by chemical reaction

    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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