Chemical Engineering MCQs

6108 MCQs  (Page 571 of 611)

Attempt Chemical Engineering Quiz
Which of the following behaves most closely like an ideal gas ?
A. He
B. N2
C. O2
D. H2
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A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ?
A. Vapor compression cycle using expansion valve
B. Air refrigeration cycle
C. Vapor compression cycle using expansion engine
D. Carnot refrigeration cycle
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Fugacity co-efficient of a substance is the ratio of its fugacity to__________________?
A. Mole fraction
B. Activity
C. Pressure
D. Activity co-efficient
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As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is_________________?
A. Not changed
B. Decreasing
C. Increasing
D. Data sufficient, can’t be predicted
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The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?
A. 100,000 kw
B. 160,000 kw
C. 200,000 kw
D. 320,000 kw
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The standard state of a gas (at a given temperature) is the state in which fugacity is equal to__________________?
A. Unity
B. Activity
C. Both a. & b
D. Neither a. nor b
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Joule-Thomson experiment is__________________?
A. Isobaric
B. Adiabatic
C. Isenthalpic
D. Both b. & c.
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Gibbs free energy of a pure fluid approaches _____________ as the pressure tends to zero at constant temperature?
A. Infinity
B. Minus infinity
C. Zero
D. None of these
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Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be_________________?
A. 0
B. 1
C. 2
D. 3
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Which is a state function ?
A. Specific volume
B. Work
C. Pressure
D. Temperature
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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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