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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.

The thermodynamic law, PVy = constant, is not applicable in case of______________?

A Ideal compression of air

B Free expansion of an ideal gas

C Adiabatic expansion of steam in a turbine

D Adiabatic compression of a perfect gas

Review Detailed Answer

Correct Answer: Free expansion of an ideal gas

Out of the following refrigeration cycles, which one has maximum COP ?

A Air cycle

B Carnot cycle

C Ordinary vapor compression cycle

D Vapor compression with a reversible expansion engine

Review Detailed Answer

Correct Answer: Carnot cycle

If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will___________________?

A Increase

B Decrease

C Remain unaltered

D Increase or decrease; depends on the particular reaction

Review Detailed Answer

Correct Answer: Remain unaltered

All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?

A Oxygen

B Nitrogen

C Air

D Hydrogen

Review Detailed Answer

Correct Answer: Hydrogen

After throttling, gas temperature___________________?

A Decreases

B Increases

C Remain same

D May increase or decrease; depends on the nature of the gas

Review Detailed Answer

Correct Answer: Decreases

Gibbs free energy per mole for a pure substance is equal to the__________________?

A Latent heat of vaporisation

B Chemical potential

C Molal boiling point

D Heat capacity

Review Detailed Answer

Correct Answer: Chemical potential

Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?

A T2/(T1 – T2)

B T1/(T1 – T2)

C (T1 – T2)/T1

D (T1 – T2)/T2

Review Detailed Answer

Correct Answer: T2/(T1 – T2)

Joule-Thomson co-efficient is defined as__________________?

A μ = (∂P/∂T)H

B μ = (∂T/∂P)H

C μ = (∂E/∂T)H

D μ = (∂E/∂P)H

Review Detailed Answer

Correct Answer: μ = (∂T/∂P)H

Work done is a____________________?

A Property of the system

B Path function

C Point function

D State description of a system

Review Detailed Answer

Correct Answer: Path function

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?

A 0

B ∞

C +ve

D -ve

Review Detailed Answer

Correct Answer: +ve

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The thermodynamic law, PVy = constant, is not applicable in case of______________?

Out of the following refrigeration cycles, which one has maximum COP ?

If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will___________________?

All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?

After throttling, gas temperature___________________?

Gibbs free energy per mole for a pure substance is equal to the__________________?

Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?

Joule-Thomson co-efficient is defined as__________________?

Work done is a____________________?

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?