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  1. __________ decreases during adiabatic throttling of a perfect gas.

  2. A.

     Entropy

    B.

     Temperature

    C.

     Enthalpy

    D.

     Pressure

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  3. Cv is given by

  4. A.

     (∂E/∂T)V

    B.

     (∂E/∂V)T

    C.

     (∂E/∂P)V

    D.

     (∂V/∂T)P

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  5. Kopp's rule is used to calculate the heat capacity of

  6. A.

     Solids

    B.

     Liquids

    C.

     Gases

    D.

     All of the above

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  7. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.

  8. A.

     Boyle

    B.

     Inversion

    C.

     Critical

    D.

     Reduced

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  9. A system in which there is exchange of energy but not of mass, is called a/an __________ system.

  10. A.

     Isolated

    B.

     Open

    C.

     Insulated

    D.

     Closed

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  11. The activity of an ideal gas is numerically __________ its pressure.

  12. A.

     More than

    B.

     Less than

    C.

     Equal to

    D.

     Data insufficient, can't be predicted

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  13. The temperature at the eutectic point of the system is the __________ temperature that can be attained in the system.

  14. A.

     Lowest

    B.

     Highest

    C.

     Average

    D.

     None of these

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  15. For a thermodynamic system containing 'x' chemical species, the maximum number of phases that can co-exist at equilibrium is

  16. A.

     X

    B.

     X + 1

    C.

     X + 2

    D.

     X + 3

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  17. Isobaric process means a constant process.

  18. A.

     Temperature

    B.

     Pressure

    C.

     Volume

    D.

     Entropy

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  19. For an ideal liquid solution, which of the following is unity?

  20. A.

     Activity

    B.

     Fugacity

    C.

     Activity co-efficient

    D.

     Fugacity co-efficient

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