NEET Physics Thermodynamics Different Thermodynamic Process MCQs

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    NEET Questions / Physics / Thermodynamics / Different Thermodynamic Process

    3.

    An ideal gas undergoes a cyclic process as shown in the Pβˆ’VP-V diagram. The work done by the gas in the complete cycle is:

    A

    (V2βˆ’V1)(P2βˆ’P1)(V_2 - V_1)(P_2 - P_1)

    B

    12(V2βˆ’V1)(P2βˆ’P1)\frac{1}{2}(V_2 - V_1)(P_2 - P_1)

    C

    12(V2+V1)(P2+P1)\frac{1}{2}(V_2 + V_1)(P_2 + P_1)

    D

    (V2+V1)(P2+P1)(V_2 + V_1)(P_2 + P_1)

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    4.

    During an adiabatic process, the pressure and volume of an ideal gas are related by PVΞ³=extconstantPV^\gamma = ext{constant}. If the ratio of specific heats Ξ³\gamma is 53\frac{5}{3}, the work done by the gas when the volume changes from V1V_1 to V2V_2 is:

    A

    P1(V2βˆ’V1)P_1(V_2 - V_1)

    B

    P2V2βˆ’P1V11βˆ’Ξ³\frac{P_2V_2 - P_1V_1}{1-\gamma}

    C

    P1V1βˆ’P2V2Ξ³βˆ’1\frac{P_1V_1 - P_2V_2}{\gamma - 1}

    D

    nRTln⁑(V2V1)nRT\ln(\frac{V_2}{V_1})

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    5.

    A gas undergoes a process described by P=aV+bP = \frac{a}{V} + b, where aa and bb are constants. The work done by the gas when the volume changes from V1V_1 to V2V_2 is:

    A

    aln⁑(V1V2)+b(V2βˆ’V1)a \ln(\frac{V_1}{V_2}) + b(V_2 - V_1)

    B

    aln⁑(V2V1)+b(V2βˆ’V1)a \ln(\frac{V_2}{V_1}) + b(V_2 - V_1)

    C

    aln⁑(V2V1)+b(V1βˆ’V2)a \ln(\frac{V_2}{V_1}) + b(V_1 - V_2)

    D

    aln⁑(V1V2)+b(V1βˆ’V2)a \ln(\frac{V_1}{V_2}) + b(V_1 - V_2)

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    6.

    An ideal gas undergoes a process where its pressure and volume are related by P=P0+Ξ±VP = P_0 + \alpha V, where P0P_0 and Ξ±\alpha are positive constants. If the gas expands from volume V1V_1 to V2V_2, the work done by the gas is:

    A

    P0(V2βˆ’V1)P_0(V_2 - V_1)

    B

    Ξ±(V2βˆ’V1)\alpha(V_2 - V_1)

    C

    P0(V2βˆ’V1)+Ξ±2(V22βˆ’V12)P_0(V_2 - V_1) + \frac{\alpha}{2}(V_2^2 - V_1^2)

    D

    P0(V2βˆ’V1)+Ξ±(V22βˆ’V12)P_0(V_2 - V_1) + \alpha(V_2^2 - V_1^2)

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