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Chemical Engineering :: Chemical Engineering Thermodynamics

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

  2. A.

     Isothermal

    B.

     Isentropic

    C.

     Isobaric

    D.

     Adiabatic


  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


  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


  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


  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


  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


  13. Dry ice is

  14. A.

     Moisture free ice

    B.

     Solid helium

    C.

     Solid carbon dioxide

    D.

     None of these


  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


  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


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

  20. A.

     Concentration

    B.

     Mass

    C.

     Temperature

    D.

     Entropy