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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.

“If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them”. This is ______________ law?

A Hess’s

B Kirchoff’s

C Lavoisier and Laplace

D None of these

Review Detailed Answer

Correct Answer: Hess’s

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

A Adiabatic

B Isometric

C Isentropic

D Isothermal

Review Detailed Answer

Correct Answer: Isometric

For an ideal gas, the activity co-efficient is_________________?

A Directly proportional to pressure

B Inversely proportional to pressure

C Unity at all pressures

D None of these

Review Detailed Answer

Correct Answer: Unity at all pressures

A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?

A 448

B 224

C 22.4

D Data insufficient; can’t be computed

Review Detailed Answer

Correct Answer: 448

Pick out the correct equation relating ‘F’ and ‘A’___________________?

A F = A + PV

B F = E + A

C F = A – TS

D F = A + TS

Review Detailed Answer

Correct Answer: F = A + PV

In the decomposition of PCl5 represented by, PCl5 ⇌ PCl3 + Cl2, decrease in the pressure of the system will _____________ the degree of dissociation of PCl5?

A Increase

B Decrease

C Not alter

D None of these

Review Detailed Answer

Correct Answer: Increase

The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by____________________?

A (R/ΔH) (1/T1 – 1/T2)

B (ΔH/R) (1/T1 – 1/T2)

C (ΔH/R) (1/T2 – 1/T1)

D (1/R) (1/T1 – 1/T2)

Review Detailed Answer

Correct Answer: (ΔH/R) (1/T1 – 1/T2)

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?

A CO2

B H2

C O2

D N2

Review Detailed Answer

Correct Answer: H2

Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates__________________?

A Use of only one graph for all gases

B Covering of wide range

C Easier plotting

D More accurate plotting

Review Detailed Answer

Correct Answer: Use of only one graph for all gases

Heating of water under atmospheric pressure is an ______________ process?

A Isochoric

B Isobaric

C Adiabatic

D Isothermal

Review Detailed Answer

Correct Answer: Isobaric

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

“If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them”. This is ______________ law?

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

For an ideal gas, the activity co-efficient is_________________?

A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?

Pick out the correct equation relating ‘F’ and ‘A’___________________?

In the decomposition of PCl5 represented by, PCl5 ⇌ PCl3 + Cl2, decrease in the pressure of the system will _____________ the degree of dissociation of PCl5?

The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by____________________?

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?

Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates__________________?

Heating of water under atmospheric pressure is an ______________ process?