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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

______________ explains the mechanism of catalysis?

A Activated complex theory

B Collision theory

C Thermodynamics

D None of these

Review Detailed Answer

Correct Answer: Activated complex theory

If Thiele modulus is ________________, then the pore diffusion resistance in a catalyst may be considered as negligible?

A 0

B ∞

C < 0.5

D > 0.5

Review Detailed Answer

Correct Answer: 0

Rate of a chemical reaction is not influenced by the__________________?

A Catalyst

B Temperature

C Reactants concentration

D Number of molecules of reactants taking part in a reaction

Review Detailed Answer

Correct Answer: Number of molecules of reactants taking part in a reaction

The irreversible reaction is a special case of reversible reaction, if the________________?

A Equilibrium constant is 1

B Conversion of the reactant at equilibrium condition is zero

C Reactant concentration at equilibrium condition is zero

D All A., B. and C.

Review Detailed Answer

Correct Answer: Reactant concentration at equilibrium condition is zero

For multiple reactions, the flow pattern within the vessel affects the ____________________?

A Size requirement

B Distribution of reaction products

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

A catalyst is said to be a negative catalyst, if it ___________________?

A Retards the rate of reaction

B Reduces the value of equilibrium constant

C Does not initiate the reaction

D All A., B. and C.

Review Detailed Answer

Correct Answer: Retards the rate of reaction

The following half life data are available for the irreversible liquid phase reaction A → products. The overall order of reaction is __________________?

A 0.5

B 1

C 1.5

D 2

Review Detailed Answer

Correct Answer: 1

The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?

A Activation

B Potential

C Binding

D Threshold

Review Detailed Answer

Correct Answer: Activation

The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a ‘tanks in series model’ comprising of ‘m’ tanks is equal to ___________________?

A m

B 1/m

C √m

D m2

Review Detailed Answer

Correct Answer: m

If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is _______________?

A Zero

B One

C Two

D Three

Review Detailed Answer

Correct Answer: One

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

______________ explains the mechanism of catalysis?

If Thiele modulus is ________________, then the pore diffusion resistance in a catalyst may be considered as negligible?

Rate of a chemical reaction is not influenced by the__________________?

The irreversible reaction is a special case of reversible reaction, if the________________?

For multiple reactions, the flow pattern within the vessel affects the ____________________?

A catalyst is said to be a negative catalyst, if it ___________________?

The following half life data are available for the irreversible liquid phase reaction A → products. The overall order of reaction is __________________?

The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?

The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a ‘tanks in series model’ comprising of ‘m’ tanks is equal to ___________________?

If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is _______________?