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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 rate of material _____________ is zero in case of a steady state system?

A Accumulation

B Production

C Input

D Generation

Review Detailed Answer

Correct Answer: Accumulation

Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at_______________?

A Heat conservation

B Yield enhancement

C Product enrichment

D None of these

Review Detailed Answer

Correct Answer: Product enrichment

If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will _______________?

A Remain unaltered

B Increase nine fold

C Increase three fold

D Decrease three fold

Review Detailed Answer

Correct Answer: Increase nine fold

Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half will result in _____________ in the volume of the gas?

A No change

B Doubling

C 1/4th reduction

D Fourfold increase

Review Detailed Answer

Correct Answer: Doubling

The unit of Cp in S.I. units is___________________?

A W/m2.°K

B J/kg.°K

C W/m.°K

D J/m3. °K

Review Detailed Answer

Correct Answer: J/kg.°K

In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is________________?

A 53

B 5.3

C 106

D 10.6

Review Detailed Answer

Correct Answer: 106

Real gases approach ideal behaviour at___________________?

A High pressure & high temperature

B Low pressure & high temperature

C High pressure & low temperature

D Low pressure & low temperature

Review Detailed Answer

Correct Answer: Low pressure & high temperature

Cp – Cv for an ideal gas is equal to________________?

A R

B R/2

C 2R

D 3R

Review Detailed Answer

Correct Answer: R

The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?

A 0.2

B 0.1

C 0.4

D 0.6

Review Detailed Answer

Correct Answer: 0.6

One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH4 + 2O2 → CO2 + 2H2O. Both the reactants and products are in gas phase. ΔH°298 = – 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about_____________________?

A 0.19

B 0.33

C 0.40

D 0.67

Review Detailed Answer

Correct Answer: 0.19

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The rate of material _____________ is zero in case of a steady state system?

Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at_______________?

If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will _______________?

Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half will result in _____________ in the volume of the gas?

The unit of Cp in S.I. units is___________________?

In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is________________?

Real gases approach ideal behaviour at___________________?

Cp – Cv for an ideal gas is equal to________________?

The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?