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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.

Heat of reaction is a function of the___________________?

A Pressure

B Temperature

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

2 litres of nitrogen at N.T.P. weighs ______________ gms ?

A 14

B 2.5

C 28

D 1.25

Review Detailed Answer

Correct Answer: 2.5

At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?

A 273°C

B 273°K

C 100°C

D 200°C

Review Detailed Answer

Correct Answer: 273°C

“The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?

A Law of Petit and Dulong

B Kopp’s rule

C Nernst heat theorem

D Trouton’s rule

Review Detailed Answer

Correct Answer: Kopp’s rule

The vapour pressure of a solution (made by dissolving a solute in a solvent) is ____________ that of the pure solvent?

A Less than

B More than

C Equal to

D Either more or less; depends on the solvent

Review Detailed Answer

Correct Answer: Less than

A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?

A 3 kmole/hr

B 4 kmole/hr

C 5 kmole/hr

D 6 kmole/hr

Review Detailed Answer

Correct Answer: 5 kmole/hr

Boiling point of a non-homogeneous mixture of immiscible liquids is _____________ that of any one of its separate components?

A Lower than

B Higher than

C Equal to

D Either A. or B.; depends on the liquids

Review Detailed Answer

Correct Answer: Lower than

The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?

A Potential energy

B Intermolecular forces

C Kinetic energy

D Total energy

Review Detailed Answer

Correct Answer: Kinetic energy

The crystallisation of a solute from a solution may be done by________________?

A Removal of pure solvent by evaporation

B Change of temperature thereby causing super-saturation

C Changing the nature of the system by the addition of a more soluble material

D All A., B. & C.

Review Detailed Answer

Correct Answer: All A., B. & C.

Na2SO4. 10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is________________?

A 20

B 32.2

C 45.35

D 58.65

Review Detailed Answer

Correct Answer: 58.65

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Heat of reaction is a function of the___________________?

2 litres of nitrogen at N.T.P. weighs ______________ gms ?

At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?

“The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?

The vapour pressure of a solution (made by dissolving a solute in a solvent) is ____________ that of the pure solvent?

A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?

Boiling point of a non-homogeneous mixture of immiscible liquids is _____________ that of any one of its separate components?

The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?

The crystallisation of a solute from a solution may be done by________________?

Na2SO4. 10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is________________?