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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.

S.T.P. corresponds to _________________?

A 1 atm. absolute pressure & 15.5°C

B 760 mm Hg gauge pressure & 15.5°C

C 760 torr & 0°C

D 101.325 kPa gauge pressure & 15.5°C

Review Detailed Answer

Correct Answer: 1 atm. absolute pressure & 15.5°C

The equilibrium data of component A in the two phases B and C are given below. The estimate of Y for X = 4 by fitting a quadratic expression of a form Y = mX2 for the above data is ____________________?

A 15.5

B 16

C 16.5

D 17

Review Detailed Answer

Correct Answer: 16

If pH value of a solution is 8, then its pOH value will be ____________________?

A 6

B 1

C 7

D 10

Review Detailed Answer

Correct Answer: 6

Average molecular weight of air is about ____________________?

A 21

B 29

C 23

D 79

Review Detailed Answer

Correct Answer: 29

What fraction of the total pressure is exerted by oxygen, if equal weights of oxygen and methane are mixed in an empty vessel at 25°C ?

A 2/3

B 1/3

C 1/2

D 1/3 × (298/273)

Review Detailed Answer

Correct Answer: 1/3

An ideal gas can be liquefied, because ___________________?

A Its molecular size is very small

B Its critical temperature is more than 0°C

C Forces operative between its molecules are negligible

D It gets solidified directly without becoming liquid

Review Detailed Answer

Correct Answer: Forces operative between its molecules are negligible

With increase in temperature, the surface tension of water _____________________?

A Increases

B Decreases

C Remain constant

D Increases linearly

Review Detailed Answer

Correct Answer: Decreases

Vapor pressure of water at 100°C is about _______________ bar?

A 0.1013

B 1.013

C 10.13

D 101.3

Review Detailed Answer

Correct Answer: 1.013

A very dilute solution is prepared by dissolving ‘x1’ mole of solute in ‘x2’ mole of a solvent. The mole fraction of solute is approximately equal to_________________?

A x1/x2

B x2/x1

C 1 – (x1/x2)

D 1/x2

Review Detailed Answer

Correct Answer: x1/x2

Atomic ______________ of an element is a whole number?

A Weight

B Number

C Volume

D Radius

Review Detailed Answer

Correct Answer: Number

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

S.T.P. corresponds to _________________?

The equilibrium data of component A in the two phases B and C are given below. The estimate of Y for X = 4 by fitting a quadratic expression of a form Y = mX2 for the above data is ____________________?

If pH value of a solution is 8, then its pOH value will be ____________________?

Average molecular weight of air is about ____________________?

What fraction of the total pressure is exerted by oxygen, if equal weights of oxygen and methane are mixed in an empty vessel at 25°C ?

An ideal gas can be liquefied, because ___________________?

With increase in temperature, the surface tension of water _____________________?

Vapor pressure of water at 100°C is about _______________ bar?

A very dilute solution is prepared by dissolving ‘x1’ mole of solute in ‘x2’ mole of a solvent. The mole fraction of solute is approximately equal to_________________?

Atomic ______________ of an element is a whole number?