Chemical Engineering - Chemical Reaction Engineering

41.
A batch reactor suffers from following disadvantage.
Poor product quality control.
High labour and handling cost.
High shutdown time requirement for emptying, cleaning and refilling.
All (a), (b)and(c).
Answer: Option
Explanation:
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42.
A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are
equal in size.
of different sizes.
of such size that the ratio of their volumes is < 5.
none of these.
Answer: Option
Explanation:
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43.
A second order liquid phase reaction, A B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume of the reacting mixture is V and the density of the liquid mixture is constant. The mass balance for A is
Answer: Option
Explanation:
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44.
Half life period of a chemical reaction is proportional to CA0-1 , if the reaction is of __________ order.
first
zero
second
third
Answer: Option
Explanation:
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45.
The irreversible reaction, X Y, is the special case of the reversible reaction, X Y, in which the
equilibrium constant is infinite.
fractional conversion of 'A' at equilibrium is unity.
concentration of 'A' at equilibrium is zero.
all (a), (b) and (c).
Answer: Option
Explanation:
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