Chemical Engineering MCQs

6108 MCQs  (Page 596 of 611)

Attempt Chemical Engineering Quiz
In an ideal solution, the activity of a component equals its __________________?
A. Mole fraction
B. Fugacity at the same temperature and pressure
C. Partial pressure
D. None of these
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What is the degree of freedom for a system comprising liquid water equilibrium with its vapour ?
A. 0
B. 1
C. 2
D. 3
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During adiabatic expansion of gas___________________?
A. Pressure remains constant
B. Pressure is increased
C. Temperature remains constant
D. None of these
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Fugacity is most helpful in____________________?
A. Representing actual behaviour of real gases
B. Representing actual behaviour of ideal gases
C. The study of chemical equilibria involving gases at atmospheric pressure
D. None of these
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Enthalpy changes over a constant pressure path are always zero for ______________ gas?
A. Any
B. A perfect
C. An easily liquefiable
D. A real
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The most important application of distribution law is in_____________________?
A. Evaporation
B. Liquid extraction
C. Drying
D. Distillation
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The standard Gibbs free energy change of a reaction depends on the equilibrium______________________?
A. Pressure
B. Temperature
C. Composition
D. All a, b. and c
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The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is__________________?
A. A . x22
B. Ax1
C. Ax2
D. Ax12
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For an isothermal process, the internal energy of a gas____________________?
A. Increases
B. Decreases
C. Remains unchanged
D. Data insufficient, can’t be predicted
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Ideal gas law is applicable at____________________?
A. Low t, low p
B. High t, high p
C. Low t, high p
D. High t, low p
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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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