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

  • question_answer
    80 gm of water at 30°C are poured on a large block of ice at 0°C. The mass of ice that melts is [CBSE PMT 1989]

    A)            30 gm                                      

    B)            80 gm

    C)            1600 gm                                 

    D)            150 gm

    Correct Answer: A

    Solution :

                       If m gm ice melts then                    Heat lost = Heat gain                    \[80\times 1\times (30-0)=m\times 80\] Þ \[m=30\,gm\]


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