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  1. Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work.

  2. A.
    isothermal
    B.
    adiabatic
    C.
    isentropic
    D.
    none of these

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  3. Internal energy change of a system over one complete cycle in a cyclic process is

  4. A.
    zero
    B.
    +ve
    C.
    -ve
    D.
    dependent on the path

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  5. Heating of water under atmospheric pressure is an __________ process.

  6. A.
    isochoric
    B.
    isobaric
    C.
    adiabatic
    D.
    isothermal

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  7. Van Laar equation deals with the activity co-efficients in

  8. A.
    binary solutions
    B.
    ternary solutions
    C.
    azeotropic mixture only
    D.
    none of these

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  9. High __________ is an undesirable property for a good refrigerant.

  10. A.
    specific heat
    B.
    latent heat of vaporisation
    C.
    viscosity
    D.
    specific vapor volume

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  11. Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the

  12. A.
    low pressure and high temperature.
    B.
    low pressure and low temperature.
    C.
    high pressure and low temperature.
    D.
    high pressure and high temperature.

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  13. Entropy is a measure of the __________ of a system.

  14. A.
    disorder
    B.
    orderly behaviour
    C.
    temperature changes only
    D.
    none of these

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  15. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

  16. A.
    zero
    B.
    positive
    C.
    negative
    D.
    none of these

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  17. Fundamental principle of refrigeration is based on the __________ law of thermodynamics.

  18. A.
    zeroth
    B.
    first
    C.
    second
    D.
    third

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  19. For a spontaneous process, free energy

  20. A.
    is zero
    B.
    increases
    C.
    decreases whereas the entropy increases
    D.
    and entropy both decrease

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