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Chemical Reaction Engineering MCQ Questions & Answers | Chemical Engineering

Learn Chemical Reaction Engineering MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Chemical Reaction Engineering MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-6 section-4

Each section contains 100 MCQs on Chemical Reaction Engineering .
51
Batch process is preferred over continuous process, when the
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Answer & Solution
Answer: Option D
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52
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in
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Answer: Option B
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53
In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.
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Answer: Option B
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54
Which of the following does not produce a change in the value of rate constant of a reaction?
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Answer & Solution
Answer: Option A
Solution:
Pressure typically does not produce a change in the value of the rate constant of a reaction.

The rate constant of a reaction is primarily affected by temperature and the presence of a catalyst.

Concentration of reactants affects the rate of reaction but does not change the rate constant itself.

Therefore, pressure is the factor that does not alter the rate constant of a reaction.
55
For a gaseous phase reaction, rate of reaction is equal to K.CA.CB. If the volume of the reactor is suddenly reduced to $${\frac{1}{4}^{{\text{th}}}}$$ of its initial volume, then the rate of reaction compared to the original rate will be __________ times.
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Answer: Option B
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56
The rate of a gas phase reaction is given by K.CA.CB. If the volume of the reaction vessel is reduced to $${\frac{1}{4}^{{\text{th}}}}$$ of its initial volume, then the reaction rate compared to the original rate will be __________ times.
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Answer: Option B
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57
The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is
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Answer: Option A
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58
The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase __________ times, if the temperature rises form 10 to 100°C.
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Answer: Option B
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59
BET apparatus is used to determine the
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Answer: Option A
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60
The sequence in which three CSTR's of volumes 5, 10 and 15 m3 will be connected in series to obtain the maximum production in a second order irreversible reaction is
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Answer: Option A
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