Chemical Engineering MCQs

Page No. 73

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


aAdiabatic process


bIsothermal process


cIsobaric process


dAll require same work


View Answer Adiabatic process

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


aMole fraction


bFugacity at the same temperature and pressure


cPartial pressure


d None of these


View Answer Mole fraction

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


a 0


b1


c2


d 3


View Answer 1

During adiabatic expansion of gas___________________?


a Pressure remains constant


bPressure is increased


cTemperature remains constant


dNone of these


View Answer None of these

Fugacity is most helpful in____________________?


aRepresenting actual behaviour of real gases


bRepresenting actual behaviour of ideal gases


c The study of chemical equilibria involving gases at atmospheric pressure


d None of these



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


aAny


bA perfect


c An easily liquefiable


d A real


View Answer A perfect

The most important application of distribution law is in_____________________?


a Evaporation


bLiquid extraction


cDrying


dDistillation


View Answer Liquid extraction

For a reversible process involving only pressure-volume work____________________?


a(dF)T, p 0


bNo


c(dF)T, p = 0


d (dA)T, v < 0


View Answer (dF)T, p = 0

Which is an example of closed system ?


a Air compressor


b Liquid cooling system of an automobile


cBoiler


dNone of these



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


aRate of heat transmission


bInitial state only


cEnd states only


dNone of these


View Answer End states only

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