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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 forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation_________________?

A Increases with pressure rise

B Decreases with increasing pressure

C Becomes zero at the critical point

D Both B. & C.

Review Detailed Answer

Correct Answer: Both B. & C.

_____________ fuels require the maximum percentage of ‘excess air’ for complete combustion ?

A Solid

B Liquid

C Gaseous

D Nuclear

Review Detailed Answer

Correct Answer: Solid

Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution) ?

A log (1/H+)

B – log (1/H+)

C 1/log H+

D None of these

Review Detailed Answer

Correct Answer: log (1/H+)

Heat of transition is the heat evolved or absorbed, when a substance is converted from_________________?

A Vapor to liquid

B Vapor to solid

C Solid to liquid

D One allotropic form to another allotropic form

Review Detailed Answer

Correct Answer: One allotropic form to another allotropic form

The vapor pressure of water at 100°C is__________________?

A 100 N/m2

B 76 cms of Hg

C 13.6 cms of Hg

D 760 mm wc

Review Detailed Answer

Correct Answer: 76 cms of Hg

The OH- concentration in a solution having pH value 3 is____________________?

A 10-3

B 10-10

C 10-11

D 10-13

Review Detailed Answer

Correct Answer: 10-11

Kinetic theory of gases stipulates that, the____________________?

A Energy is lost during molecular collisions

B Molecules possess appreciable volume

C Absolute temperature is a measure of the kinetic energy of molecules

D None of these

Review Detailed Answer

Correct Answer: Absolute temperature is a measure of the kinetic energy of molecules

pH value of H2SO4 (5% concentration) is__________________?

A 5

B 7

C > 7

D < 7

Review Detailed Answer

Correct Answer: 7

Raoult’s law is not applicable to the___________________?

A Solutes which dissociate or associate in the particular solution

B Concentrated solutions

C Both B. & C.

D Solutions containing non-volatile solute

Review Detailed Answer

Correct Answer: Both B. & C.

Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?

A The strong base and strong acid reacts completely

B The salt formed does not hydrolyse

C Only OH- and H+ ions react in every case

D The strong base and strong acid reacts in aqueous solution

Review Detailed Answer

Correct Answer: Only OH- and H+ ions react in every case

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation_________________?

_____________ fuels require the maximum percentage of ‘excess air’ for complete combustion ?

Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution) ?

Heat of transition is the heat evolved or absorbed, when a substance is converted from_________________?

The vapor pressure of water at 100°C is__________________?

The OH- concentration in a solution having pH value 3 is____________________?

Kinetic theory of gases stipulates that, the____________________?

pH value of H2SO4 (5% concentration) is__________________?

Raoult’s law is not applicable to the___________________?

Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?