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.

_____________ law of thermodynamics ascertains the direction of a particular spontaneous process?

A Zeroth

B First

C Second

D Third

Review Detailed Answer

Correct Answer: Second

The energy of activation of exothermic reaction is_________________?

A Zero

B Negative

C Very large compared to that for endothermic reaction

D Not possible to predict

Review Detailed Answer

Correct Answer: Not possible to predict

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will____________________?

A Increase

B Decrease

C Remain same

D Increase in summer and will decrease in winter

Review Detailed Answer

Correct Answer: Increase

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be _____________ c.c?

A 2.73

B 28.3

C 273

D 283

Review Detailed Answer

Correct Answer: 28.3

The principle applied in liquefaction of gases is_____________________?

A Adiabatic expansion

B Joule-Thomson effect

C Both A. and B

D Neither A. nor B

Review Detailed Answer

Correct Answer: Both A. and B

The second law of thermodynamics states that___________________?

A The energy change of a system undergoing any reversible process is zero

B It is not possible to transfer heat from a lower temperature to a higher temperature

C The total energy of system and surrounding remains the same

D None of the above

Review Detailed Answer

Correct Answer: None of the above

Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?

A Decreases

B Increases

C Remains constant

D Decreases logarithmically

Review Detailed Answer

Correct Answer: Increases

In the equation, PVn = constant, if the value of n = 1, then it represents a reversible _____________ process?

A Isothermal

B Isobaric

C Polytropic

D Adiabatic

Review Detailed Answer

Correct Answer: Isothermal

Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?

A Solution

B Vaporisation

C Formation

D Sublimation

Review Detailed Answer

Correct Answer: Vaporisation

The absolute entropy for all crystalline substances at absolute zero temperature is ____________________?

A Zero

B Negative

C More than zero

D Indeterminate

Review Detailed Answer

Correct Answer: Zero

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

_____________ law of thermodynamics ascertains the direction of a particular spontaneous process?

The energy of activation of exothermic reaction is_________________?

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will____________________?

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be _____________ c.c?

The principle applied in liquefaction of gases is_____________________?

The second law of thermodynamics states that___________________?

Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?

In the equation, PVn = constant, if the value of n = 1, then it represents a reversible _____________ process?

Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?

The absolute entropy for all crystalline substances at absolute zero temperature is ____________________?