Chemical Engineering MCQs

6108 MCQs  (Page 575 of 611)

Attempt Chemical Engineering Quiz
At normal boiling point, molar entropy of vaporisation is _____________ Joule/K°.mole?
A. 72
B. 92
C. 142
D. 192
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In an ideal gas mixture, fugacity of a species is equal to its___________________?
A. Vapor pressure
B. Partial pressure
C. Chemical potential
D. None of these
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A large iceberg melts at the base, but not at the top, because of the reason that_________________?
A. Ice at the base contains impurities which lowers its melting point
B. Due to the high pressure at the base, its melting point reduces
C. The iceberg remains in a warmer condition at the base
D. All a, b. and c
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The extensive properties are____________________?
A. Volume, mass and number of moles
B. Free energy, entropy and enthalpy
C. Both a. and b
D. None of these
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Van Laar equation deals with the activity co-efficients in___________________?
A. Binary solutions
B. Ternary solutions
C. Azeotropic mixture only
D. None of these
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The equation DU = Tds – PdV is applicable to infinitesimal changes occuring in_________________?
A. An open system of constant composition
B. A closed system of constant composition
C. An open system with changes in composition
D. A closed system with changes in composition
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Which of the following is not an intensive property ?
A. Molar heat capacity
B. Internal energy
C. Viscosity
D. None of these
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Heat of reaction at constant volume is identified with _____________ change?
A. Enthalpy
B. Internal energy
C. Either a. or b
D. Neither a. nor b
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The equation, PV = nRT, is best obeyed by gases at____________________?
A. Low pressure & high temperature
B. High pressure & low temperature
C. Low pressure & low temperature
D. None of these
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Gibbs-Helmholtz equation is__________________?
A. Δf = δh + t [∂(δf)/∂t]p
B. Δf = δh – tδt
C. D(e – ts) t, v < 0
D. Dp/dt = δhvap/t.δvvap
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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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