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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.

For any system, what is the minimum number of degrees of freedom ?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 0

The intensive properties are_____________?

A Molar volume, density, viscosity and boiling point

B Refractive index and surface tension

C Both A. and B

D None of these

Review Detailed Answer

Correct Answer: Both A. and B

What is the degree of freedom for two miscible (non-reacting) substances in vapor-liquid equilibrium forming an azeotrope ?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 2

Enthalpy of a gas depends upon its___________________?

A Temperature

B Mass

C Volume

D Pressure

Review Detailed Answer

Correct Answer: Temperature

The expression, ΔG = nRT. ln(P2/P1), gives the free energy change______________?

A With pressure changes at constant temperature

B Under reversible isothermal volume change

C During heating of an ideal gas

D During cooling of an ideal gas

Review Detailed Answer

Correct Answer: With pressure changes at constant temperature

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?

A Superheated vapour

B Partially condensed vapour with quality of 0.9

C Saturated vapour

D Partially condensed vapour with quality of 0.1

Review Detailed Answer

Correct Answer: Superheated vapour

If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) ⇌ C3H8(g) will be _____________ Kcal?

A -19.4

B -30.2

C 55.2

D -55.2

Review Detailed Answer

Correct Answer: -19.4

Which of the following liquid metals has the highest thermal conductivity ?

A Molten sodium

B Molten lead

C Mercury

D Molten potassium

Review Detailed Answer

Correct Answer: Molten sodium

High _____________ is an undesirable property for a good refrigerant?

A Specific heat

B Latent heat of vaporisation

C Viscosity

D Specific vapor volume

Review Detailed Answer

Correct Answer: Viscosity

Specific _____________ does not change during phase change at constant temperature and pressure?

A Entropy

B Gibbs energy

C Internal energy

D Enthalpy

Review Detailed Answer

Correct Answer: Gibbs energy

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For any system, what is the minimum number of degrees of freedom ?

The intensive properties are_____________?

What is the degree of freedom for two miscible (non-reacting) substances in vapor-liquid equilibrium forming an azeotrope ?

Enthalpy of a gas depends upon its___________________?

The expression, ΔG = nRT. ln(P2/P1), gives the free energy change______________?

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?

If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) ⇌ C3H8(g) will be _____________ Kcal?

Which of the following liquid metals has the highest thermal conductivity ?

High _____________ is an undesirable property for a good refrigerant?

Specific _____________ does not change during phase change at constant temperature and pressure?