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  1. What is the ratio of adiabatic compressibility to isothermal compressibility?

  2. A.

     1

    B.

     < 1

    C.

     > 1

    D.

     >> 1

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  3. Which of the following non-flow reversible compression processes require maximum work?

  4. A.

     Adiabatic process

    B.

     Isothermal process

    C.

     Isobaric process

    D.

     All of the above

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  5. What is the value of Joule-Thomson co-efficient for an ideal gas?

  6. A.

     +ve

    B.

     -ve

    C.

     0

    D.

     ∞

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  7. Which of the following equations is used for the prediction of activity co-efficient from experiments?

  8. A.

     Van Laar equation

    B.

     Margules equation

    C.

     Wilson's equation

    D.

     All of the above

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  9. The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is

  10. A.

     A . x₂²

    B.

     Ax₁

    C.

     Ax₂

    D.

     Ax₁²

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  11. What is the value of ln y (where y = activity co-efficient) for ideal gases?

  12. A.

     Zero

    B.

     Unity

    C.

     Infinity

    D.

     Negative

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  13. __________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.

  14. A.

     Bucket

    B.

     Throttling

    C.

     Separating

    D.

     A combination of separating & throttling

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

  16. A.

     Disorder

    B.

     Orderly behaviour

    C.

     Temperature changes only

    D.

     None of these

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  17. Entropy, which is a measure of the disorder of a system is

  18. A.

     Independent of pressure

    B.

     Independent of temperature

    C.

     Zero at absolute zero temperature for a perfect crystalline substance

    D.

     All of the above

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  19. Joule-Thomson Co-efficient at any point on the inversion curve is

  20. A.

     ∞

    B.

     + ve

    C.

     0

    D.

     -ve

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