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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 entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is_________________?

A R loge 4

B R log10 4

C Cv log10 4

D Cv loge 4

Review Detailed Answer

Correct Answer: R loge 4

The unit of equilibrium constant of a chemical reaction is the same as that of__________________?

A Molar concentration

B Temperature

C Internal energy

D None of these

Review Detailed Answer

Correct Answer: None of these

A liquid under pressure greater than its vapour pressure for the temperature involved is called a _____________ liquid?

A Sub-cooled

B Saturated

C Non-solidifiable

D None of these

Review Detailed Answer

Correct Answer: Sub-cooled

The first law of thermodynamics is a restatement of the law of conservation of_________________?

A Mass

B Energy

C Momentum

D None of these

Review Detailed Answer

Correct Answer: Energy

________________ decreases during adiabatic throttling of a perfect gas?

A Entropy

B Temperature

C Enthalpy

D Pressure

Review Detailed Answer

Correct Answer: Pressure

Change of state namely evaporation condensation, freezing and melting is an _______________ process?

A Isothermal

B Adiabatic

C Isobaric

D Isochoric

Review Detailed Answer

Correct Answer: Isothermal

Co-efficient of Performance (COP) of a refrigerator is the ratio of the ______________________?

A Work required to refrigeration obtained

B Refrigeration obtained to the work required

C Lower to higher temperature

D Higher to lower temperature

Review Detailed Answer

Correct Answer: Refrigeration obtained to the work required

Claude gas liquefaction process employs cooling___________________?

A At constant pressure

B By throttling

C By expansion in an engine

D None of these

Review Detailed Answer

Correct Answer: By expansion in an engine

Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be___________________?

A Same

B Doubled

C Halved

D One fourth of its original value

Review Detailed Answer

Correct Answer: Same

The activity of an ideal gas is numerically ____________ its pressure?

A More than

B Less than

C Equal to

D Data insufficient, can’t be predicted

Review Detailed Answer

Correct Answer: Equal to

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is_________________?

The unit of equilibrium constant of a chemical reaction is the same as that of__________________?

A liquid under pressure greater than its vapour pressure for the temperature involved is called a _____________ liquid?

The first law of thermodynamics is a restatement of the law of conservation of_________________?

________________ decreases during adiabatic throttling of a perfect gas?

Change of state namely evaporation condensation, freezing and melting is an _______________ process?

Co-efficient of Performance (COP) of a refrigerator is the ratio of the ______________________?

Claude gas liquefaction process employs cooling___________________?

Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be___________________?

The activity of an ideal gas is numerically ____________ its pressure?