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Chemical Engineering :: Chemical Engineering Thermodynamics

  1. Pick out the wrong statement.

  2. A.
    Trouton's ratio of non-polar liquids is calculated using Kistyakowasky equation.
    B.
    Thermal efficiency of a Carnot engine is always less than 1.
    C.
    An equation relating pressure, volume and temperature of a gas is called ideal gas equation.
    D.
    none of these.

  3. Which of the following is clausius-Clayperon equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor ?


  4. When a gas is subjected to adiabatic expansion, it gets cooled due to

  5. A.
    decrease in velocity.
    B.
    decrease in temperature.
    C.
    decrease in kinetic energy.
    D.
    energy spent in doing work.

  6. Joule-Thomson effect i.e., a throttling process is a constant __________ process.

  7. A.
    entropy
    B.
    temperature
    C.
    internal energy
    D.
    enthalpy

  8. In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.

  9. A.
    isobaric
    B.
    isothermal
    C.
    isentropic
    D.
    isometric

  10. Work done in an adiabatic process between two states depends on the

  11. A.
    rate of heat transmission
    B.
    initial state only
    C.
    end states only
    D.
    none of these

  12. The internal energy of an ideal gas is a function of its __________ only.

  13. A.
    molecular size
    B.
    volume
    C.
    pressure
    D.
    temperature

  14. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is

  15. A.
    zero
    B.
    one
    C.
    infinity
    D.
    negative

  16. The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition.

  17. A.
    internal energy
    B.
    enthalpy
    C.
    Gibbs free energy
    D.
    Helmholtz free energy