Chemical Engineering MCQs

6108 MCQs  (Page 282 of 611)

Attempt Chemical Engineering Quiz
The reactions with low activation energy are _____________________?
A. Always spontaneous
B. Slow
C. Fast
D. Non-spontaneous
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A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to _________________?
A. Lose a proton
B. Gain a proton
C. Lose an electron
D. None of these
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Chemical kinetics can predict the _______________ of a chemical reaction?
A. Rate
B. Feasibility
C. Both a. & b.
D. Neither a. nor b.
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The reaction in which the rate equation corresponds to a stoichiometric equation, is called a/an _______________ reaction?
A. Elementary
B. Non-elementary
C. Parallel
D. Autokinetic
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Reaction rate of a first order reaction, which is half completed in 23 minutes will be _________________?
A. 0.03 sec-1
B. 0.03 min-1
C. 0.03 hr-1
D. 0.05 min-1
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A typical example of an exothermic reversible reaction conducted at high pressure in industry is____________________?
A. Dehydration of ethanol
B. Methanol synthesis
C. Reformation of methane
D. Polymerisation of ethylene
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Inversion of cane sugar is an example of ______________________?
A. Unimolecular reaction with first order
B. Bimolecular reaction with second order
C. Bimolecular reaction with first order
D. Unimolecular reaction with second order
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A pulse tracer is introduced in an ideal CSTR (with a mean residence time I) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be__________________?
A. 2η
B. 0.5η
C. Η/0.693
D. 0.693η
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Integral method for analysing the kinetic data is used _____________________?
A. When the data are scattered
B. For testing specific mechanisms with simple rate expressions
C. Both a. and b.
D. None of these
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As the chemical reaction proceeds, the rate of reaction ___________________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease depending on the type of reaction
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Word of the Day
28 Jul
Fragile
(of an object) easily broken or damaged.
نازک، کاغذی، آسانی سے ٹوٹ جانیوالا

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