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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.

A refrigerator may be termed as a____________________?

A Heat pump

B Heat engine

C Carnot engine

D None of these

Review Detailed Answer

Correct Answer: Heat pump

When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?

A More in vapour phase

B More in liquid phase

C Same in both the phases

D Replaced by chemical potential which is more in vapour phase

Review Detailed Answer

Correct Answer: Same in both the phases

With increase in compression ratio, the efficiency of the otto engine________________?

A Increases

B Decreases

C Remain constant

D Increases linearly

Review Detailed Answer

Correct Answer: Increases

Entropy of a substance remains constant during a/an ____________ change?

A Reversible isothermal

B Irreversible isothermal

C Reversible adiabatic

D None of these

Review Detailed Answer

Correct Answer: Reversible adiabatic

In case of a close thermodynamic system, there is ______________ across the boundaries?

A No heat and mass transfer

B No mass transfer but heat transfer

C Mass and energy transfer

D None of these

Review Detailed Answer

Correct Answer: No mass transfer but heat transfer

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by_________________?

A (∂E/∂ni)S, v, nj

B (∂G/∂ni)T, P, nj = (∂A/∂ni) T, v, nj

C (∂H/∂ni)S, P, nj

D All (A), B. and (C)

Review Detailed Answer

Correct Answer: All (A), B. and (C)

The necessary condition for phase equilibrium in a multiphase system of N components is that the____________________?

A Chemical potentials of a given component should be equal in all phases

B Chemical potentials of all components should be same in a particular phase

C Sum of the chemical potentials of any given component in all the phases should be the same

D None of these

Review Detailed Answer

Correct Answer: Chemical potentials of a given component should be equal in all phases

_____________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low?

A Bucket

B Throttling

C Separating

D A combination of separating & throttling

Review Detailed Answer

Correct Answer: A combination of separating & throttling

Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the__________________?

A Cold reservoir approaches zero

B Hot reservoir approaches infinity

C Either A. or B

D Neither A. nor B

Review Detailed Answer

Correct Answer: Either A. or B

An isentropic process is carried out at constant____________________?

A Volume

B Pressure

C Temperature

D All (A), B. and (C)

Review Detailed Answer

Correct Answer: Volume

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A refrigerator may be termed as a____________________?

When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?

With increase in compression ratio, the efficiency of the otto engine________________?

Entropy of a substance remains constant during a/an ____________ change?

In case of a close thermodynamic system, there is ______________ across the boundaries?

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by_________________?

The necessary condition for phase equilibrium in a multiphase system of N components is that the____________________?

_____________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low?

Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the__________________?

An isentropic process is carried out at constant____________________?