AIPMT 2009 physics questions with solutions

Showing 1–3 of 3 questions

• MCQeasyThermodynamicsfirst law of thermodynamics

  The internal energy change in a system that has absorbed 2 kCal of heat and done 500 J of work is:

  Options

  • Option A

    8900 J

  • Option B

    6400 J

  • Option C

    5400 J

  • Option D

    7900 J

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• MCQeasyThermodynamicsthermodynamic process and work done

  In a thermodynamic process, which of the following statements is NOT true?

  Options

  • Option A

    In an adiabatic process, the system is insulated from the surroundings.

  • Option B

    In an isochoric process, pressure remains constant.

  • Option C

    In an isothermal process, temperature remains constant.

  • Option D

    In a reversible adiabatic process of an ideal gas, PVᵞ = constant.

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• MCQeasyThermodynamicsfirst law of thermodynamics

  If ΔU and ΔW denote the increase in internal energy and work done by the system respectively in a thermodynamic process, which of the following is true?

  Options

  • Option A

    ΔU = -ΔW, in an adiabatic process.

  • Option B

    ΔU = ΔW, in an isothermal process.

  • Option C

    ΔU = ΔW, in an adiabatic process.

  • Option D

    ΔU = -ΔW, in an isothermal process.

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