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7th Class Science Heat Question Bank Heat

  • question_answer
    The temperature of the substance remains constant when it is melting and boiling though some quantity of heat is supplied. What happens to this energy?

    A) It is dissipated as sound energy

    B) It is consumed to increase the energy of the molecules

    C) It is used to change the state of the substance

    D) It is still an unsolved problem in science

    Correct Answer: C

    Solution :

        It is used to change the state of the substance


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