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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 expression for entropy change given by, ΔS = – nR ln (P2/P1), holds good for___________________?

A Expansion of a real gas

B Reversible isothermal volume change

C Heating of an ideal gas

D Cooling of a real gas

Review Detailed Answer

Correct Answer: Reversible isothermal volume change

dW and dq are not the exact differential, because q and W are__________________?

A State functions

B Path functions

C Intensive properties

D Extensive properties

Review Detailed Answer

Correct Answer: Path functions

Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants) ?

A (atm)Δx, when Δx is negative

B (atm)Δx, when Δx is positive

C Dimensionless, when Δx = 0

D (atm)Δx2, when Δx > 0

Review Detailed Answer

Correct Answer: (atm)Δx2, when Δx > 0

Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?

A Decreases

B Decreases exponentially

C Increases

D Remain constant

Review Detailed Answer

Correct Answer: Increases

(∂E/∂T)V is the mathematical expression for____________________?

A CV

B Enthalpy change

C Free energy change

D None of these

Review Detailed Answer

Correct Answer: None of these

Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor) ?

A Freon

B Liquid sulphur dioxide

C Methyl chloride

D Ammonia

Review Detailed Answer

Correct Answer: Freon

A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?

A Isolated

B Closed

C Open

D None of these

Review Detailed Answer

Correct Answer: Open

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?

A n = y = 1.4

B n = 0

C n = 1

D n = 1.66

Review Detailed Answer

Correct Answer: n = 1

In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?

A 2HI ⇌ H2 + I2

B N2O4 ⇌ 2NO2

C 2SO2 + O2 ⇌ 2SO3

D None of these

Review Detailed Answer

Correct Answer: N2O4 ⇌ 2NO2

The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?

A Less than

B Equal to

C More than

D Either B. or C; depends on the type of alloy

Review Detailed Answer

Correct Answer: Less than

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The expression for entropy change given by, ΔS = – nR ln (P2/P1), holds good for___________________?

dW and dq are not the exact differential, because q and W are__________________?

Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants) ?

Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?

(∂E/∂T)V is the mathematical expression for____________________?

Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor) ?

A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?

In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?

The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?