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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.

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

Unit of mass velocity is___________________?

A kg/m.hr

B kg/m2.hr

C kg/hr

D kg/m2

Review Detailed Answer

Correct Answer: kg/m2.hr

Elements in a periodic table are arranged in order of their__________________?

A Atomic number

B Mass number

C Atomic weight

D Metallic characteristics

Review Detailed Answer

Correct Answer: Atomic number

The most convenient way of expressing solution concentration is in terms of___________________?

A Mole fraction

B Normality

C Molality

D Molarity

Review Detailed Answer

Correct Answer: Molarity

Disappearance of snow in subzero weather exemplifies the process of_________________?

A Evaporation

B Sublimation

C Vaporisation

D Melting

Review Detailed Answer

Correct Answer: Sublimation

The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?

A 0.07

B 0.09

C 0.11

D 0.13

Review Detailed Answer

Correct Answer: 0.13

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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____________________?

Unit of mass velocity is___________________?

Elements in a periodic table are arranged in order of their__________________?

The most convenient way of expressing solution concentration is in terms of___________________?

Disappearance of snow in subzero weather exemplifies the process of_________________?

The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?