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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 chemical potential for a pure substance is ____________ its partial molal free energy?

A More than

B Less than

C Equal to

D Not related to

Review Detailed Answer

Correct Answer: Equal to

Free energy change of mixing two liquid substances is a function of the__________________?

A Concentration of the constituents only

B Quantities of the constituents only

C Temperature only

D All A, B. and C

Review Detailed Answer

Correct Answer: All A, B. and C

A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?

A its internal energy (U) decreases and its entropy (S) increases

B U and S both decreases

C U decreases but S is constant

D U is constant but S decreases

Review Detailed Answer

Correct Answer: U and S both decreases

In case of an _______________ process, the temperature of the system increases?

A Isothermal compression

B Isothermal expansion

C Adiabatic expansion

D Adiabatic compression

Review Detailed Answer

Correct Answer: Adiabatic compression

Enthalpy ‘H’ is defined as___________________?

A H = E – PV

B H = F – TS

C H – E = PV

D None of these

Review Detailed Answer

Correct Answer: H – E = PV

Adiabatic compression of a saturated water vapour makes it ____________________ ?

A Supersaturated

B Superheated

C Both A. and B

D Neither A. nor B

Review Detailed Answer

Correct Answer: Superheated

The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?

A ∞

B 1

C 0

D -ve

Review Detailed Answer

Correct Answer: 0

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 a gas in a vessel expands, its internal energy decreases. The process involved is________________?

A Reversible

B Irreversible

C Isothermal

D Adiabatic

Review Detailed Answer

Correct Answer: Reversible

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

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The chemical potential for a pure substance is ____________ its partial molal free energy?

Free energy change of mixing two liquid substances is a function of the__________________?

A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?

In case of an _______________ process, the temperature of the system increases?

Enthalpy ‘H’ is defined as___________________?

Adiabatic compression of a saturated water vapour makes it ____________________ ?

The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?

A refrigerator may be termed as a____________________?

When a gas in a vessel expands, its internal energy decreases. The process involved is________________?

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