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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 osmotic pressure of a solution increases, if its _____________ is decreased?

A Volume

B Solute concentration

C Temperature

D None of these

Review Detailed Answer

Correct Answer: None of these

The effect of pressure on the heat capacity of the gases ______________ is negligible?

A At pressure below one atmosphere

B Below the critical temperature

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies________________?

A XM < 0.5

B XM = 0.5

C 0.5 < XM < 0.64

D XM ≥ 0.64

Review Detailed Answer

Correct Answer: XM ≥ 0.64

Which of the following expressions defines the Baume gravity scale for liquids heavier than water ?

A (141.5/G) – 131.5

B 145 – (145/G)

C 200 (G-1)

D (400/G) – 400

Review Detailed Answer

Correct Answer: 145 – (145/G)

A bypass stream in a chemical process is useful, because it___________________?

A Facilitates better control of the process

B Improves the conversion

C Increases the yield of products

D None of these

Review Detailed Answer

Correct Answer: Facilitates better control of the process

At standard conditions, N2 + 2O2 ⇌ 2NO2; ΔG° = 100 kJ/mole NO + ½O2 ⇌ 2NO2; ΔG° = -35 kJ/mole The standard free energy of formation of NO in kJ/mole is___________________?

A 15

B 30

C 85

D 170

Review Detailed Answer

Correct Answer: 85

Validity of the relationship, inputs = outputs, holds good for the system at steady state________________?

A With chemical reaction

B Without chemical reaction

C Without chemical reaction & losses

D None of these

Review Detailed Answer

Correct Answer: Without chemical reaction

Kopp’s rule is concerned with the calculation of__________________?

A Thermal conductivity

B Heat capacity

C Viscosity

D Surface tension

Review Detailed Answer

Correct Answer: Heat capacity

Viscosity of atmospheric air may be about _____________ centipoise?

A 0.015

B 1.5

C 15

D 150

Review Detailed Answer

Correct Answer: 0.015

Pick out the wrong unit conversion of heat transfer co-efficient?

A 1 kcal/m2.hr.°C = 0.2048 BTU/ft2.hr. °F. = 1.163 W/m2.°K

B 1 kcal/m2.hr.°K = 1.163 W/m2.°C

C 1 W/m2.°C = 0.1761 BTU/ft2.hr.°F.

D 1 BTU/ft2.hr.°F = 4.88 kcal/m2.hr.°C = 20.44 kJ/m2.hr°C = 5.678 W/m2.°C

Review Detailed Answer

Correct Answer: 1 kcal/m2.hr.°K = 1.163 W/m2.°C

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The osmotic pressure of a solution increases, if its _____________ is decreased?

The effect of pressure on the heat capacity of the gases ______________ is negligible?

The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies________________?

Which of the following expressions defines the Baume gravity scale for liquids heavier than water ?

A bypass stream in a chemical process is useful, because it___________________?

At standard conditions, N2 + 2O2 ⇌ 2NO2; ΔG° = 100 kJ/mole NO + ½O2 ⇌ 2NO2; ΔG° = -35 kJ/mole The standard free energy of formation of NO in kJ/mole is___________________?

Validity of the relationship, inputs = outputs, holds good for the system at steady state________________?

Kopp’s rule is concerned with the calculation of__________________?

Viscosity of atmospheric air may be about _____________ centipoise?

Pick out the wrong unit conversion of heat transfer co-efficient?