Chemical Engineering MCQs

6108 MCQs  (Page 569 of 611)

Attempt Chemical Engineering Quiz
The expression for entropy change given by, ΔS = – nR ln (P2/P1), holds good for___________________?
A. Expansion of a real gas
B. Reversible isothermal volume change
C. Heating of an ideal gas
D. Cooling of a real gas
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Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants) ?
A. (atm)δx, when δx is negative
B. (atm)δx, when δx is positive
C. Dimensionless, when δx = 0
D. (atm)δx2, when δx > 0
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dW and dq are not the exact differential, because q and W are__________________?
A. State functions
B. Path functions
C. Intensive properties
D. Extensive properties
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Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?
A. Decreases
B. Decreases exponentially
C. Increases
D. Remain constant
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(∂E/∂T)V is the mathematical expression for____________________?
A. Cv
B. Enthalpy change
C. Free energy change
D. None of these
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A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?
A. Isolated
B. Closed
C. Open
D. None of these
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Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor) ?
A. Freon
B. Liquid sulphur dioxide
C. Methyl chloride
D. Ammonia
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In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?
A. N = y = 1.4
B. N = 0
C. N = 1
D. N = 1.66
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In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?
A. 2hi ⇌ h2 + i2
B. N2o4 ⇌ 2no2
C. 2so2 + o2 ⇌ 2so3
D. None of these
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The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?
A. Less than
B. Equal to
C. More than
D. Either b. or c; depends on the type of alloy
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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