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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.

Which of the following is a thermodynamic property of a system ?

A Concentration

B Mass

C Temperature

D Entropy

Review Detailed Answer

Correct Answer: Entropy

The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?

A √(2KT/m)

B √(3KT/m)

C √(6KT/m)

D 3KT/m

Review Detailed Answer

Correct Answer: √(3KT/m)

In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

A More

B Less

C Same

D Unpredictable; depends on the particular reaction

Review Detailed Answer

Correct Answer: Same

Requisites of a reversible process is that the ____________________?

A System and surroundings pressure be equal

B Friction in the system should be absent

C System and surroundings temperature be equal

D None of these

Review Detailed Answer

Correct Answer: Friction in the system should be absent

The amount of heat required to decompose a compound into its elements is _____________ the heat of formation of that compound from its elements?

A Less than

B More than

C Same as

D Not related to

Review Detailed Answer

Correct Answer: Same as

Internal energy of an ideal gas___________________?

A Increases with increase in pressure

B Decreases with increase in temperature

C Is independent of temperature

D None of these

Review Detailed Answer

Correct Answer: None of these

Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?

A Below

B At

C Above

D Either B. or C.

Review Detailed Answer

Correct Answer: Below

Solid and liquid phases of a substance are in equilibrium at the____________________?

A Critical temperature

B Melting point

C Freezing point

D Both B. and C

Review Detailed Answer

Correct Answer: Both B. and C

Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as________________?

A P + F – C = 2

B C = P – F + 2

C F = C – P – 2

D P = F – C – 2

Review Detailed Answer

Correct Answer: P + F – C = 2

For an isothermal reversible compression of an ideal gas_______________?

A Only ΔE = 0

B Only ΔH =0

C ΔE = ΔH = 0

D dQ = dE

Review Detailed Answer

Correct Answer: ΔE = ΔH = 0

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

Which of the following is a thermodynamic property of a system ?

The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?

In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

Requisites of a reversible process is that the ____________________?

The amount of heat required to decompose a compound into its elements is _____________ the heat of formation of that compound from its elements?

Internal energy of an ideal gas___________________?

Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?

Solid and liquid phases of a substance are in equilibrium at the____________________?

Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as________________?

For an isothermal reversible compression of an ideal gas_______________?