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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.

In any spontaneous process, ?

A Only F decreases

B Only A decreases

C Both F and A decreases

D Both F and A increase

Review Detailed Answer

Correct Answer: Both F and A decreases

The change in Gibbs free energy for vaporisation of a pure substance is___________________?

A Positive

B Negative

C Zero

D May be positive or negative

Review Detailed Answer

Correct Answer: Zero

Answer: Option B 392. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to _____________ °C?

A 270

B 327

C 300

D 540

Review Detailed Answer

Correct Answer: 327

Free energy___________________?

A Decreases in all spontaneous (or irreversible) processes

B Change during a spontaneous process has a negative value

C Remains unchanged in reversible processes carried at constant temperature and pressure

D All A, B. and C

Review Detailed Answer

Correct Answer: All A, B. and C

Degrees of freedom at triple point will be______________?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 0

For an irreversible process involving only pressure-volume work____________________?

A (dF)T, p <0

B (dF)T, p = 0

C (dF)T, p > 0

D (dA)T, v >0

Review Detailed Answer

Correct Answer: (dF)T, p <0

Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance) ?

A Air cycle

B Carnot cycle

C Ordinary vapour compression cycle

D Vapour compression with a reversible expansion engine

Review Detailed Answer

Correct Answer: Air cycle

With increase in temperature, the atomic heat capacities of all solid elements_________________?

A Increases

B Decreases

C Remains unchanged

D Decreases linearly

Review Detailed Answer

Correct Answer: Increases

The total change in the enthalpy of a system is independent of the _______________________?

A Number of intermediate chemical reactions involved

B Pressure and temperature

C State of combination and aggregation in the beginning and at the end of the reaction

D None of these

Review Detailed Answer

Correct Answer: Number of intermediate chemical reactions involved

Which of the following behaves most closely like an ideal gas ?

A He

B N2

C O2

D H2

Review Detailed Answer

Correct Answer: He

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In any spontaneous process, ?

The change in Gibbs free energy for vaporisation of a pure substance is___________________?

Answer: Option B 392. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to _____________ °C?

Free energy___________________?

Degrees of freedom at triple point will be______________?

For an irreversible process involving only pressure-volume work____________________?

Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance) ?

With increase in temperature, the atomic heat capacities of all solid elements_________________?

The total change in the enthalpy of a system is independent of the _______________________?

Which of the following behaves most closely like an ideal gas ?