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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.

Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor) ?

A Freon

B Liquid sulphur dioxide

C Methyl chloride

D Ammonia

Review Detailed Answer

Correct Answer: Freon

A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?

A Isolated

B Closed

C Open

D None of these

Review Detailed Answer

Correct Answer: Open

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?

A n = y = 1.4

B n = 0

C n = 1

D n = 1.66

Review Detailed Answer

Correct Answer: n = 1

In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?

A 2HI ⇌ H2 + I2

B N2O4 ⇌ 2NO2

C 2SO2 + O2 ⇌ 2SO3

D None of these

Review Detailed Answer

Correct Answer: N2O4 ⇌ 2NO2

The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?

A Less than

B Equal to

C More than

D Either B. or C; depends on the type of alloy

Review Detailed Answer

Correct Answer: Less than

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

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor) ?

A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?

In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?

The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?

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______________?