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JEE Main & Advanced Physics Thermodynamical Processes Question Bank Self Evaluation Test - Thermodynamics

  • question_answer
    2 k mol of hydrogen at NTP expands isobarically to twice its initial volume. The change in its internal energy is \[({{C}_{v}}=10kJ/kg.K\]and atm pressure \[=1\times 105N/{{m}^{2}})\]

    A) 10.9 MJ       

    B) 9.10 MJ

    C) 109 MJ             

    D)        1.09 MJ

    Correct Answer: A

    Solution :

    [a] \[\Delta U=nC,\Delta T=2\times {{10}^{3}}\times 20\times 273=10.9MJ.\]      


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