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.

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

During Joule-Thomson expansion of gases_________________?

A Enthalpy remains constant

B Entropy remains constant

C Temperature remains constant

D None of these

Review Detailed Answer

Correct Answer: Enthalpy remains constant

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

The equilibrium constant for a chemical reaction at two different temperatures is given by__________________?

A Kp2/Kp1 = – (ΔH/R) (1/T2 – 1/T1)

B Kp2/Kp1 = (ΔH/R) (1/T2 – 1/T1)

C Kp2/Kp1 = ΔH (1/T2 – 1/T1)

D Kp2/Kp1 = – (1/R) (1/T2 – 1/T1)

Review Detailed Answer

Correct Answer: Kp2/Kp1 = – (ΔH/R) (1/T2 – 1/T1)

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

A domestic refrigerator has a/an ____________ cooled condenser?

A Water

B Air

C Evaporative

D Gas

Review Detailed Answer

Correct Answer: Air

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)

The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components. A and B in equilibrium with their vapors at constant temperature and pressure is called the _____________ equation?

A Van Laar

B Margules

C Gibbs-Duhem

D Gibbs-Duhem-Margules

Review Detailed Answer

Correct Answer: Margules

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

During a reversible isothermal expansion of an ideal gas, the entropy change is_________________?

A +ve

B 0

C -ve

D ∞

Review Detailed Answer

Correct Answer: +ve

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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

During Joule-Thomson expansion of gases_________________?

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

The equilibrium constant for a chemical reaction at two different temperatures is given by__________________?

In an irreversible process________________?

A domestic refrigerator has a/an ____________ cooled condenser?

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__________________?

The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components. A and B in equilibrium with their vapors at constant temperature and pressure is called the _____________ equation?

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_________________?

During a reversible isothermal expansion of an ideal gas, the entropy change is_________________?