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  1. PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

  2. A.

     Isothermal

    B.

     Isentropic

    C.

     Isobaric

    D.

     Adiabatic

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  3. In the reaction, represented by, 2SO₂ + O₂ ⇋ 2SO₃; ΔH = - 42 kcal; the forward reaction will be favoured by

  4. A.

     Low temperature

    B.

     High pressure

    C.

     Both A and B

    D.

     Neither A nor B

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  5. Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.

  6. A.

     Polar

    B.

     Non-polar

    C.

     Both A & B

    D.

     Neither A nor B

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  7. The heat capacities for the ideal gas state depend upon the

  8. A.

     Pressure

    B.

     Temperature

    C.

     Both A & B

    D.

     Neither A nor B

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  9. An ideal liquid refrigerant should

  10. A.

     Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils

    B.

     Not have unduly high vapour pressure at the condenser temperature

    C.

     Both A and B

    D.

     Have low specific heat

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  11. One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

  12. A.

     30554

    B.

     10373

    C.

     4988.4

    D.

     4364.9

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  13. Dry ice is

  14. A.

     Moisture free ice

    B.

     Solid helium

    C.

     Solid carbon dioxide

    D.

     None of these

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  15. Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates

  16. A.

     Use of only one graph for all gases

    B.

     Covering of wide range

    C.

     Easier plotting

    D.

     More accurate plotting

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  17. Entropy of a substance remains constant during a/an __________ change.

  18. A.

     Reversible isothermal

    B.

     Irreversible isothermal

    C.

     Reversible adiabatic

    D.

     None of these

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  19. Which of the following is a thermodynamic property of a system?

  20. A.

     Concentration

    B.

     Mass

    C.

     Temperature

    D.

     Entropy

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