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 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 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

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

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

For spontaneous changes in an isolated system (S = entropy) ___________________?

A ds = 0

B ds <0

C ds > 0

D ds = Constant

Review Detailed Answer

Correct Answer: ds > 0

For an exothermic reaction ____________________?

A Only enthalpy change (ΔH) is negative

B Only internal energy change (ΔE) is negative

C Both ΔH and ΔE are negative

D Enthalpy change is zero

Review Detailed Answer

Correct Answer: Both ΔH and ΔE are negative

Joule-Thomson effect i.e., a throttling process is a constant _____________ process?

A Entropy

B Temperature

C Internal energy

D Enthalpy

Review Detailed Answer

Correct Answer: Enthalpy

Which of the following is Virial equation of state ?

A (p + a/V2)(V – b) = nRT

B PV = nRT

C PV = A + B/V + C/V2 + D/V3 + …

D None of these

Review Detailed Answer

Correct Answer: PV = A + B/V + C/V2 + D/V3 + …

Specific ____________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.)?

A Entropy

B Internal energy

C Enthalpy

D Gibbs free energy

Review Detailed Answer

Correct Answer: Gibbs free energy

At ____________ point, all the three phases (i.e. solid, liquid and gas) co-exist ?

A Eutectic

B Triple

C Plait

D Critical

Review Detailed Answer

Correct Answer: Triple

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

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 second law of thermodynamics states that___________________?

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

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

For spontaneous changes in an isolated system (S = entropy) ___________________?

For an exothermic reaction ____________________?

Joule-Thomson effect i.e., a throttling process is a constant _____________ process?

Which of the following is Virial equation of state ?

Specific ____________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.)?

At ____________ point, all the three phases (i.e. solid, liquid and gas) co-exist ?