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WB JEE Medical WB JEE Medical Solved Paper-2006

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

    A)  increase

    B)  remain unchanged

    C)  decrease

    D)  first increase then decrease

    Correct Answer: A

    Solution :

                     According to the mass-energy equivalencemass and energy remain conserved. So, whenwater is cooled to form ice, water loses itsenergy, so change in energy increases the massof water.


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