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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.

After throttling, gas temperature___________________?

A Decreases

B Increases

C Remain same

D May increase or decrease; depends on the nature of the gas

Review Detailed Answer

Correct Answer: Decreases

Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?

A T2/(T1 – T2)

B T1/(T1 – T2)

C (T1 – T2)/T1

D (T1 – T2)/T2

Review Detailed Answer

Correct Answer: T2/(T1 – T2)

Work done is a____________________?

A Property of the system

B Path function

C Point function

D State description of a system

Review Detailed Answer

Correct Answer: Path function

For a constant pressure reversible process, the enthalpy change (ΔH) of the system is___________________?

A Cv.dT

B Cp.dT

C ∫ Cp.dT

D ∫ Cv.dT

Review Detailed Answer

Correct Answer: Cp.dT

When pressure is applied on the system, ice ↔ water, then_________________?

A Equilibrium cannot be established

B More ice will be formed

C More water will be formed

D Evaporation of water will take place

Review Detailed Answer

Correct Answer: More water will be formed

In an irreversible process________________?

A Tds = dE – dW = 0

B dE – dW – Tds = 0

C Tds – dE + dW < 0

D Tds – dT + dW < 0

Review Detailed Answer

Correct Answer: Tds – dE + dW < 0

The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by__________________?

A T1/(T1-T2)

B T2/(T1-T2)

C T1/T2

D T2/R1

Review Detailed Answer

Correct Answer: T1/(T1-T2)

An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to_________________?

A 12 P1V1

B 6 P1 V1

C 3 P1V1

D P1 V1

Review Detailed Answer

Correct Answer: 3 P1V1

The work done in an adiabatic change in a particular gas depends upon changes in the ______________ only?

A Temperature

B Specific heat

C Volume

D Pressure

Review Detailed Answer

Correct Answer: Temperature

Entropy change for an irreversible isolated system is__________________?

A ∞

B 0

C < 0

D > 0

Review Detailed Answer

Correct Answer: 0

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

After throttling, gas temperature___________________?

Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?

Work done is a____________________?

For a constant pressure reversible process, the enthalpy change (ΔH) of the system is___________________?

When pressure is applied on the system, ice ↔ water, then_________________?

In an irreversible process________________?

The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by__________________?

An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to_________________?

The work done in an adiabatic change in a particular gas depends upon changes in the ______________ only?

Entropy change for an irreversible isolated system is__________________?