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JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Calorimetry

  • question_answer
    If mass energy equivalence is taken into account, when water is cooled to form ice, the mass of water should [AIEEE 2002]

    A)            Increase                                 

    B)            Remain unchanged

    C)            Decrease                               

    D)            First increase then decrease

    Correct Answer: B

    Solution :

               When water is cooled at 0°C to form ice then 80 calorie/gm (latent heat) energy is released. Because potential energy of the molecules decreases. Mass will remain constant in the process of freezing of water.


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