Chemical Engineering MCQs

Page No. 89

Which of the following is affected by the temperature ?


aFugacity


bActivity co-efficient


cFree energy


dAll A, B. & C


View Answer All A, B. & C

For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion does not depend on the________________?


aSteam to ethylene ratio


bTemperature


cPressure


dNone of these


View Answer None of these

Which of the following exemplifies an adiabatic process ?


aMelting of ice


bCondensation of alcohol vapor


cSudden bursting of a cycle tube


dEvaporation of water



A gas performs the maximum work, when it expands___________________?


aNon-uniformly


bAdiabatically


cIsobarically


d Isothermally


View Answer Isobarically

Absolute zero temperature signifies the ____________________?


aMinimum temperature attainable


bTemperature of the heat reservoir to which a Carnot engine rejects all the heat that is taken in


cTemperature of the heat reservoir to which a Carnot engine rejects no heat


d None of these



Melting of ice exemplifies a/an______________________?


aAdiabatic process


b Endothermic reaction


cExothermic reaction


dProcess involving a chemical reaction



Normal temperature and pressure (N.T.P.) corresponds to ___________________?


a0°C and 760 mm Hg


b 15°C and 760 mm Hg


c 20°C and 760 mm Hg


d0°C and 1 kgf/cm2



The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?


a√(2KT/m)


b √(3KT/m)


c√(6KT/m)


d3KT/m


View Answer √(3KT/m)

Requisites of a reversible process is that the ____________________?


aSystem and surroundings pressure be equal


bFriction in the system should be absent


cSystem and surroundings temperature be equal


dNone of these



Internal energy of an ideal gas___________________?


aIncreases with increase in pressure


bDecreases with increase in temperature


c Is independent of temperature


dNone of these


View Answer None of these

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