Chemical Engineering MCQs

Page No. 73

Which of the following non-flow reversible compression processes require maximum work ?


aAdiabatic process

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bIsothermal process

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cIsobaric process

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dAll require same work

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View Answer Adiabatic process

In an ideal solution, the activity of a component equals its __________________?


aMole fraction

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bFugacity at the same temperature and pressure

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cPartial pressure

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d None of these

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View Answer Mole fraction

What is the degree of freedom for a system comprising liquid water equilibrium with its vapour ?


a 0

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b1

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c2

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d 3

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View Answer 1

During adiabatic expansion of gas___________________?


a Pressure remains constant

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bPressure is increased

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cTemperature remains constant

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dNone of these

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View Answer None of these

Fugacity is most helpful in____________________?


aRepresenting actual behaviour of real gases

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bRepresenting actual behaviour of ideal gases

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c The study of chemical equilibria involving gases at atmospheric pressure

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d None of these

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Enthalpy changes over a constant pressure path are always zero for ______________ gas?


aAny

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bA perfect

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c An easily liquefiable

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d A real

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View Answer A perfect

The most important application of distribution law is in_____________________?


a Evaporation

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bLiquid extraction

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cDrying

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dDistillation

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View Answer Liquid extraction

For a reversible process involving only pressure-volume work____________________?


a(dF)T, p 0

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bNo

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c(dF)T, p = 0

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d (dA)T, v < 0

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View Answer (dF)T, p = 0

Which is an example of closed system ?


a Air compressor

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b Liquid cooling system of an automobile

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cBoiler

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dNone of these

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Work done in an adiabatic process between two states depends on the__________________?


aRate of heat transmission

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bInitial state only

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cEnd states only

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dNone of these

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View Answer End states only

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