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Chemical Engineering :: Chemical Engineering Thermodynamics

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

  2. A.

     Entropy

    B.

     Temperature

    C.

     Enthalpy

    D.

     Pressure


  3. Cv is given by

  4. A.

     (∂E/∂T)V

    B.

     (∂E/∂V)T

    C.

     (∂E/∂P)V

    D.

     (∂V/∂T)P


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

  6. A.

     Solids

    B.

     Liquids

    C.

     Gases

    D.

     All of the above


  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


  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


  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


  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


  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


  17. Isobaric process means a constant process.

  18. A.

     Temperature

    B.

     Pressure

    C.

     Volume

    D.

     Entropy


  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