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Railways NTPC (Technical Ability) Thermodynamics and Heat Transfer Question Bank Thermodynamics and Heat Transfer

  • question_answer
    If Q = Heat content of a gas, u = Internal energy P = Pressure, V = Volume, T = Temperature then which of the following statement is applicable to perfect gas and is also true for an irreversible process?

    A)  \[dQ=dU+qdV\]           

    B)  \[Tds=dU+PdV\]

    C)  \[dQ=Tds\]                  

    D)  \[dQ=Tds+dU\]

    Correct Answer: B

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