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.

A system is said to be isopiestic, if there is no ______________ change?

A Temperature

B Pressure

C Volume

D None of these

Review Detailed Answer

Correct Answer: Pressure

1st law of thermodynamics is nothing but the law of conservation of___________________?

A Momentum

B Mass

C Energy

D None of these

Review Detailed Answer

Correct Answer: Energy

What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor ?

A 2

B 0

C 3

D 1

Review Detailed Answer

Correct Answer: 2

The third law of thermodynamics states that the__________________?

A Heat capacity of a crystalline solid is zero at absolute zero temperature

B Heat transfer from low temperature to high temperature source is not possible without external

C Gases having same reduced properties behaves similarly

D None of these

Review Detailed Answer

Correct Answer: Heat capacity of a crystalline solid is zero at absolute zero temperature

Which of the following is not an equation of state ?

A Bertholet equation

B Clausius-Clapeyron equation

C Beattie-Bridgeman equation

D None of these

Review Detailed Answer

Correct Answer: Clausius-Clapeyron equation

Which of the following identities can be most easily used to verify steam table data for superheated steam ?

A (∂T/∂V)S = (∂p/∂S)V

B (∂T/∂P)S = (∂V/∂S)P

C (∂P/∂T)V = (∂S/∂V)T

D (∂V/∂T)P = -(∂S/∂P)T

Review Detailed Answer

Correct Answer: (∂V/∂T)P = -(∂S/∂P)T

The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?

A Increases

B Decreases

C Remains unchanged

D Decreases linearly

Review Detailed Answer

Correct Answer: Increases

In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in_____________?

A Enhanced COP

B Decreased COP

C No change in the value of COP

D Increased or decreased COP; depending upon the type of refrigerant

Review Detailed Answer

Correct Answer: Enhanced COP

In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when___________________?

A Cp < Cv

B Cp = Cv

C Cp > Cv

D C ≥ Cv

Review Detailed Answer

Correct Answer: Cp = Cv

“At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero”. This follows from the __________________?

A Third law of thermodynamics

B Second law of thermodynamics

C Nernst heat theorem

D Maxwell’s relations

Review Detailed Answer

Correct Answer: Third law of thermodynamics

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A system is said to be isopiestic, if there is no ______________ change?

1st law of thermodynamics is nothing but the law of conservation of___________________?

What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor ?

The third law of thermodynamics states that the__________________?

Which of the following is not an equation of state ?

Which of the following identities can be most easily used to verify steam table data for superheated steam ?

The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?

In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in_____________?

In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when___________________?

“At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero”. This follows from the __________________?