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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.

The value of gas constant ‘R’ is__________________?

A 1.987 cal/gm mole °K

B 1.987 BTU/lb. mole °R

C Both A. and B

D Neither A. nor B

Review Detailed Answer

Correct Answer: Both A. and B

Gibbs phase rule finds application, when heat transfer occurs by___________________?

A Conduction

B Convection

C Radiation

D Condensation

Review Detailed Answer

Correct Answer: Condensation

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is___________________?

A Same in both the phases

B Zero in both the phases

C More in vapour phase

D More in liquid phase

Review Detailed Answer

Correct Answer: Same in both the phases

Which of the following will increase the volume of a real gas by four times ?

A Doubling the absolute temperature as well as pressure of the gas

B Reducing pressure to one fourth at constant temperature

C Reducing temperature to one fourth at constant pressure

D Reducing the temperature to half and doubling the pressure

Review Detailed Answer

Correct Answer: Reducing pressure to one fourth at constant temperature

Which is not a refrigerant ?

A SO2

B NH3

C CCl2F2

D C2H4Cl2

Review Detailed Answer

Correct Answer: C2H4Cl2

Compressibility factor for almost all the gases are approximately same at the same__________________?

A Pressure and temperature

B Reduced pressure and reduced temperature

C Critical pressure and critical temperature

D None of these

Review Detailed Answer

Correct Answer: Reduced pressure and reduced temperature

Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?

A A homogeneous solution (say of phenol water) is formed

B Mutual solubility of the two liquids shows a decreasing trend

C Two liquids are completely separated into two layers

D None of these

Review Detailed Answer

Correct Answer: A homogeneous solution (say of phenol water) is formed

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

A Δ H = 0 and ΔS = 0

B Δ H ≠ 0 and ΔS = 0

C Δ H ≠ 0 and ΔS ≠ 0

D Δ H = 0 and ΔS ≠ 0

Review Detailed Answer

Correct Answer: Δ H ≠ 0 and ΔS = 0

Maxwell’s relation corresponding to the identity, dH = dS = Vdp + Σμi dni is_____________________?

A (∂T/∂V)S, ni = -(∂P/∂S)V, ni

B (∂S/∂P)T, ni = (∂V/∂T)P, ni

C (∂S/∂V)T, ni = (∂P/∂T)V, ni

D (∂T/∂P)S, ni = (∂V/∂S)P, ni

Review Detailed Answer

Correct Answer: (∂T/∂P)S, ni = (∂V/∂S)P, ni

Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?

A Superheated

B Desuperheated

C Non-condensable

D None of these

Review Detailed Answer

Correct Answer: Superheated

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The value of gas constant ‘R’ is__________________?

Gibbs phase rule finds application, when heat transfer occurs by___________________?

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is___________________?

Which of the following will increase the volume of a real gas by four times ?

Which is not a refrigerant ?

Compressibility factor for almost all the gases are approximately same at the same__________________?

Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

Maxwell’s relation corresponding to the identity, dH = dS = Vdp + Σμi dni is_____________________?

Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?