Chemical Engineering MCQs

6108 MCQs  (Page 550 of 611)

Attempt Chemical Engineering Quiz
At triple point (for one component system), vapour pressure of solid as compared to that of liquid will be________________?
A. More
B. Less
C. Same
D. More or less; depending on the system
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Mollier diagram is a plot of___________________?
A. Temperature vs. enthalpy
B. Temperature vs. enthalpy
C. Entropy vs. enthalpy
D. Temperature vs. internal energy
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The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?
A. Critical
B. Boyle
C. Inversion
D. Reduced
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Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are_______________?
A. Always greater than one
B. Same at the same reduced temperature
C. Same at the same reduced pressure
D. Both b. & c
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In a turbine, the fluid expands almost_________________?
A. Isothermally
B. Isobarically
C. Adiabatically
D. None of these
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The number of degrees of freedom at the triple point of water is__________________?
A. 0
B. 1
C. 2
D. 3
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The chemical potential for a pure substance is ____________ its partial molal free energy?
A. More than
B. Less than
C. Equal to
D. Not related to
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A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?
A. Its internal energy (u) decreases and its entropy (s) increases
B. U and s both decreases
C. U decreases but s is constant
D. U is constant but s decreases
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The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?
A. ∞
B. 1
C. 0
D. -ve
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Enthalpy ‘H’ is defined as___________________?
A. H = e – pv
B. H = f – ts
C. H – e = pv
D. None of these
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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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