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JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Topic Test - Thermometry, Thermal Expansion and Calorimetry (3-5-21)

  • question_answer
    A metallic ball and highly stretched spring are made of the same material and have the same mass. They are heated so that they melt, the latent heat required       

    A) Are the same for both

    B) Is greater for the ball

    C) Is greater for the spring

    D) For the two may or may not be the same depending upon the metal

    Correct Answer: A

    Solution :

                   Latent heat is independent of configuration. Ordered energy spent in stretching the spring will not contribute to heat which is disordered kinetic energy of molecules of substance.


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