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Chemical Engineering :: Chemical Engineering Thermodynamics

  1. Mollier diagram is a plot of

  2. A.
    temperature vs. enthalpy
    B.
    temperature vs. enthalpy
    C.
    entropy vs. enthalpy
    D.
    temperature vs. internal energy

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  3. is the mathematical expression for

  4. A.
    CV
    B.
    enthalpy change
    C.
    free energy change
    D.
    none of these

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

  6. A.
    more than
    B.
    less than
    C.
    equal to
    D.
    data insufficient, can't be predicted

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  7. Which of the following diagrams does not represent an Otto cycle ?

  8. A.
    B.
    C.
    D.
    none of these

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  9. Specific heat of a gas for a reversible adiabatic process is

  10. A.
    negative
    B.
    zero
    C.
    infinity
    D.
    none of these

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  11. When a gas in a vessel expands, its internal energy decreases. The process involved is

  12. A.
    reversible
    B.
    irreversible
    C.
    isothermal
    D.
    adiabatic

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  13. A system is said to be isopiestic, if there is no __________ change.

  14. A.
    temperature
    B.
    pressure
    C.
    volume
    D.
    none of these

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  15. In a turbine, the fluid expands almost

  16. A.
    isothermally
    B.
    isobarically
    C.
    adiabatically
    D.
    none of these

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  17. The unity of Planck's constant 'h' in the equation, E = hv is

  18. A.
    J/s
    B.
    J.S
    C.
    J/kmol
    D.
    kmol/J

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  19. Specific/molar Gibbs free energy for a pure substance does not change during

  20. A.
    sublimation
    B.
    vaporisation
    C.
    melting
    D.
    either (a), (b) or (c)

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