Home / Chemical Engineering / Chemical Engineering Thermodynamics :: Section 4

Chemical Engineering :: Chemical Engineering Thermodynamics

  1. Work done is a

  2. A.
    property of the system
    B.
    path function
    C.
    point function
    D.
    state description of a system

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Entropy of the system decreases, when

  4. A.
    snow melts into water.
    B.
    a gas expands spontaneously from high pressure to low pressure.
    C.
    water is converted into ice.
    D.
    both (b) & (c).

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Extensive properties of a thermodynamic system depend upon the __________ of the system.

  6. A.
    specific volume
    B.
    temperature
    C.
    mass
    D.
    pressure

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. The equation Tds = dE - PdV applies to

  8. A.
    single phase fluid of varying composition.
    B.
    single phase fluid of constant composition.
    C.
    open as well as closed systems.
    D.
    both (b) and (c)

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero.

  10. A.
    enthalpy
    B.
    volume
    C.
    both 'a' & 'b'
    D.
    neither 'a' nor 'b'

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.

  12. A.
    less than
    B.
    same as
    C.
    more than
    D.
    half

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

  14. A.
    RT lnK
    B.
    -RT lnK
    C.
    -R lnK
    D.
    T lnK

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.

  16. A.
    decreases
    B.
    increases
    C.
    remains constant
    D.
    decreases logarithmically

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. In the reaction, H2 +I2 2HI, addition of an inert gas will

  18. A.
    increase the partial pressure of H2.
    B.
    increase the partial pressure of I2.
    C.
    increase the total pressure and hence shift the equilibrium towards the right.
    D.
    not effect the equilibrium conditions

    View Answer

    Workspace

    Discuss Discuss in Forum


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

  20. A.
    critical
    B.
    Boyle
    C.
    inversion
    D.
    reduced

    View Answer

    Workspace

    Discuss Discuss in Forum