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

  • question_answer
    On P-V coordinates, the slope of an isothermal curve of a gas at a pressure \[P=1MPa\] and volume \[F=0.0025{{m}^{3}}\] is equal to\[-400\text{ }MPa/{{m}^{3}}\] . If \[{{C}_{p}}/{{C}_{v}}=1.4,\] the slope of the adiabatic curve passing through this point is:

    A)             \[-56\text{ }MPa/{{m}^{3}}\]

    B)             \[-\,400\text{ }MPa/{{m}^{3}}\]

    C) \[-560\text{ }MPa/{{m}^{3}}\]

    D) None of these

    Correct Answer: C

    Solution :

    [c] Slope of adiabatic curve \[=\gamma \times \]Slope of isothermal curve \[=1.4\times \left( -\,400 \right)=-560\text{ }MPa/{{m}^{3}}\]


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