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  • Question
  • In a reversible chemical reaction (where, ?x = number of moles of products-number of moles of reactants )


  • Options
  • A. addition of inert gas favours the forward reaction, when ?x is positive.
  • B. pressure has no effect on equilibrium, when ?n = 0.
  • C. addition of inert gas has no effect on the equilibrium constant at constant volume for any value of ?x (+ ve, - ve) or zero).
  • D. all 'a', 'b' & 'c'.

  • Correct Answer
  • all 'a', 'b' & 'c'. 


  • Chemical Engineering Thermodynamics problems


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    • 1. The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while freezing.

    • Options
    • A. contracts
    • B. expands
    • C. does not change in volume
    • D. either (a), (b) or (c)
    • Discuss
    • 2. __________ increases with increase in pressure.

    • Options
    • A. The melting point of wax
    • B. The boiling point of a liquid
    • C. both (a) and (b)
    • D. neither (a) nor (b)
    • Discuss
    • 3. Fundamental principle of refrigeration is based on the __________ law of thermodynamics.

    • Options
    • A. zeroth
    • B. first
    • C. second
    • D. third
    • Discuss
    • 4. Water on heating from 1 to 4°C

    • Options
    • A. contracts
    • B. expands
    • C. has same volume
    • D. may contract or expand
    • Discuss
    • 5. Entropy is a measure of the __________ of a system.

    • Options
    • A. disorder
    • B. orderly behaviour
    • C. temperature changes only
    • D. none of these
    • Discuss
    • 6. Isobaric process means a constant process.

    • Options
    • A. temperature
    • B. pressure
    • C. volume
    • D. entropy
    • Discuss
    • 7. Compressibility factor for almost all the gases are approximately same at the same

    • Options
    • A. pressure and temperature.
    • B. reduced pressure and reduced temperature.
    • C. critical pressure and critical temperature.
    • D. none of these.
    • Discuss
    • 8. If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the

    • Options
    • A. Maxwell's equation
    • B. Clayperon-Claussius equation
    • C. Van Laar equation
    • D. Nernst Heat Theorem
    • Discuss
    • 9. Pick out the wrong statement.

    • Options
    • A. Activity co-efficient is dimensionless.
    • B. In case of an ideal gas, the fagacity is equal to its pressure.
    • C. In a mixture of ideal gases, the fugacity of a component is equal to the partial pressure of the component.
    • D. The fugacity co-efficient is zero for an ideal gas.
    • Discuss
    • 10. Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

    • Options
    • A. 1st
    • B. zeroth
    • C. 3rd
    • D. none of these
    • Discuss


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