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

  • question_answer
    Assertion             :       The molecules at 0ºC ice and 0ºC water will have same potential energy. Reason                 :       Potential energy depends only on temperature of the system.

    A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.

    B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

    C)             If assertion is true but reason is false.

    D)             If the assertion and reason both are false.

    E)             If assertion is false but reason is true.

    Correct Answer: D

    Solution :

                The potential energy of water molecules is more. The heat given to melt the ice at 0ºC is used up in increasing the potential energy of water molecules formed at 0ºC.


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