Chemical Reaction Engineering MCQ Questions & Answers

41

In case of a/an __________ chemical reaction, conversion increases with the rise in temperature.

A) Reversible exothermic B) Irreversible exothermic C) Irreversible endothermic D) Reversible endothermic

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Answer & Solution

Answer: Option D

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42

The units of frequency factor in Arhenious equation

A) Are the same as those of the rate constant B) Depend on the order of the reaction C) Depend on temperature, pressure etc. of the reaction D) Are cycles per unit time

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Answer & Solution

Answer: Option A

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43

Pick out the wrong statement.

A) Catalytic activity of enzyme catalysed reactions which is affected by temperature, pH value & chemical agents, is maximum at a temperature of about 45°C B) Most of the enzyme catalysed reactions involve at least two substrates C) Enzymes help in increasing the activation energy of the reaction D) Equilibrium concentrations in enzyme catalysed reactions can be calculated by using the thermodynamic properties of substrates & products

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Answer & Solution

Answer: Option C

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44

Differential method for analysing the kinetic data is used

A) For testing complicated mechanisms B) When the data are scattered C) When rate expressions are very simple D) None of these

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Answer & Solution

Answer: Option A

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45

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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Answer & Solution

Answer: Option C

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46

In a/an __________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation.

A) Adiabatic B) Isothermal C) Non-adiabatic D) None of these

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Answer & Solution

Answer: Option C

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Chemical Reaction Engineering MCQ Questions & Answers | Chemical Engineering