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JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank First law of thermodynamics and Hess law

  • question_answer
    Enthalpy \[(H)\] is equal to          [MH CET  2004]

    A)                 Internal energy E

    B)                 Product of pressure (P) and volume (V) of gas

    C)                 Internal energy E+PV

    D)                 Work (W) done by a system

    Correct Answer: C

    Solution :

                    Enthalpy \[(H)\] is defined as the sum of internal energy \[E+PV\], \[H=E+PV\].


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