Chemical Engineering MCQs

6108 MCQs  (Page 548 of 611)

Attempt Chemical Engineering Quiz
Recycling in a chemical process facilitates___________________?
A. Increased yield
B. Enrichment of product
C. Heat conservation
D. All a., b. & c.
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“The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes”. This is the _____________ law?
A. Dalton’s
B. Amagat’s
C. Gay-lussac’s
D. Avogadro’s
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1m3 is approximately equal to_________________?
A. 28 litres
B. 35 ft3
C. 4.5 litres
D. 4.5 ft3
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Which of the following gravity scales is used exclusively for liquids heavier than water ?
A. Baume scale
B. Twaddell scale
C. Api scale
D. None of these
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In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is__________________?
A. Independent of the temperature
B. Increased with the increase in pressure
C. Decreased with the increase in pressure
D. Unchanged by the pressure change
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The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation_________________?
A. Increases with pressure rise
B. Decreases with increasing pressure
C. Becomes zero at the critical point
D. Both b. & c.
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_____________ fuels require the maximum percentage of ‘excess air’ for complete combustion ?
A. Solid
B. Liquid
C. Gaseous
D. Nuclear
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Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution) ?
A. Log (1/h+)
B. – log (1/h+)
C. 1/log h+
D. None of these
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Heat of transition is the heat evolved or absorbed, when a substance is converted from_________________?
A. Vapor to liquid
B. Vapor to solid
C. Solid to liquid
D. One allotropic form to another allotropic form
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The vapor pressure of water at 100°C is__________________?
A. 100 n/m2
B. 76 cms of hg
C. 13.6 cms of hg
D. 760 mm wc
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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