Chemical Engineering MCQs

Page No. 89

Which of the following is affected by the temperature ?


aFugacity

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bActivity co-efficient

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cFree energy

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dAll A, B. & C

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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

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bTemperature

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cPressure

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dNone of these

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View Answer None of these

Which of the following exemplifies an adiabatic process ?


aMelting of ice

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bCondensation of alcohol vapor

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cSudden bursting of a cycle tube

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dEvaporation of water

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A gas performs the maximum work, when it expands___________________?


aNon-uniformly

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bAdiabatically

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cIsobarically

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d Isothermally

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View Answer Isobarically

Absolute zero temperature signifies the ____________________?


aMinimum temperature attainable

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

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

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d None of these

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Melting of ice exemplifies a/an______________________?


aAdiabatic process

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b Endothermic reaction

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cExothermic reaction

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dProcess involving a chemical reaction

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


a0°C and 760 mm Hg

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b 15°C and 760 mm Hg

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c 20°C and 760 mm Hg

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d0°C and 1 kgf/cm2

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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)

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b √(3KT/m)

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c√(6KT/m)

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d3KT/m

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View Answer √(3KT/m)

Requisites of a reversible process is that the ____________________?


aSystem and surroundings pressure be equal

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bFriction in the system should be absent

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cSystem and surroundings temperature be equal

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dNone of these

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Internal energy of an ideal gas___________________?


aIncreases with increase in pressure

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bDecreases with increase in temperature

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c Is independent of temperature

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dNone of these

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View Answer None of these

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