Chemical Engineering MCQs

6108 MCQs  (Page 585 of 611)

Attempt Chemical Engineering Quiz
In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v1 = 1 m3 and v23 m3) is maximum, when the value of ‘n’ is_________________?
A. 0
B. 1
C. Y = 1.44
D. 1.66
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Out of the following refrigeration cycles, which one has maximum COP ?
A. Air cycle
B. Carnot cycle
C. Ordinary vapor compression cycle
D. Vapor compression with a reversible expansion engine
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All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?
A. Oxygen
B. Nitrogen
C. Air
D. Hydrogen
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Gibbs free energy per mole for a pure substance is equal to the__________________?
A. Latent heat of vaporisation
B. Chemical potential
C. Molal boiling point
D. Heat capacity
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Joule-Thomson co-efficient is defined as__________________?
A. Μ = (∂p/∂t)h
B. Μ = (∂t/∂p)h
C. Μ = (∂e/∂t)h
D. Μ = (∂e/∂p)h
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The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?
A. 0
B. ∞
C. +ve
D. -ve
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During Joule-Thomson expansion of gases_________________?
A. Enthalpy remains constant
B. Entropy remains constant
C. Temperature remains constant
D. None of these
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The equilibrium constant for a chemical reaction at two different temperatures is given by__________________?
A. Kp2/kp1 = – (δh/r) (1/t2 – 1/t1)
B. Kp2/kp1 = (δh/r) (1/t2 – 1/t1)
C. Kp2/kp1 = δh (1/t2 – 1/t1)
D. Kp2/kp1 = – (1/r) (1/t2 – 1/t1)
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A domestic refrigerator has a/an ____________ cooled condenser?
A. Water
B. Air
C. Evaporative
D. Gas
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The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components. A and B in equilibrium with their vapors at constant temperature and pressure is called the _____________ equation?
A. Van laar
B. Margules
C. Gibbs-duhem
D. Gibbs-duhem-margules
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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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