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Discussion :: GATE Production

  1. An ideal gas of mass m and temperature T1 undergoes a reversible isothermal process from an initial pressure P1 to final pressure P2. The heat loss during the process is Q. The entropy change ∆S of the gas is
    2. A.
    mR ln(P2/P1)
    B.
    mR ln(P1/P2)
    C.
    mR ln(P2/P1) - Q/T1
    D.
    zero

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    Answer : Option B

    Explanation :

    -NA-

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