Material Balances MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Material Balances, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Material Balances MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Material Balances mcq questions that explore various aspects of Material Balances problems. Each MCQ is crafted to challenge your understanding of Material Balances principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Material Balances MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Material Balances. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Material Balances knowledge to the test? Let's get started with our carefully curated MCQs!

Material Balances MCQs | Page 2 of 20

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Q11.
There were 10 moles of a substance present initially in a system, 5 moles were added to it and a reaction occurred so that its moles are reduced by 20%, what are the final moles of substance in the system?

a.

10

b.

12

c.

15

d.

18

Discuss
Answer: (b).12
Q12.
There were 15 moles of a substance present initially in a system, 25 moles were added to it and a reaction occurred so that its moles are reduced by 50%, what are the final moles of substance in the system?

a.

10

b.

15

c.

20

d.

40

Discuss
Answer: (c).20
Q13.
10 moles of A were present in a system initially, and 12 moles of C are added to it, it undergoes the reaction 2A + 3C -> 2B, what are number of moles of B produced?

a.

4

b.

5

c.

8

d.

12

Discuss
Answer: (c).8
Q14.
10 moles of A were present in a system initially, and 8 moles of C are added to it, it undergoes the reaction 5A + 3C -> 4B, what are number of moles of B produced?

a.

4

b.

6

c.

8

d.

10

Discuss
Answer: (c).8
Q15.
8 moles of A were present in a system initially, and 24 moles of B are added to it, it undergoes the reaction 2A + 3B -> 4C + 5D, what are number of moles of D produced?

a.

10

b.

20

c.

30

d.

40

Discuss
Answer: (c).30
Q16.
Which of the following is constant in a closed system?

a.

Energy

b.

Mass

c.

Temperature

d.

Momentum

Discuss
Answer: (b).Mass
Q17.
How is the boundary wall of a closed system?

a.

Impermeable

b.

Permeable

c.

Rigid

d.

None of the mentioned

Discuss
Answer: (a).Impermeable
Q18.
Desert Cooler is an example of which of the following?

a.

Closed System

b.

Open System

c.

Isolated System

d.

None of the mentioned

Discuss
Answer: (b).Open System
Q19.
A jar filled with water is an example of which of the following?

a.

Closed System

b.

Open System

c.

Isolated System

d.

None of the mentioned

Discuss
Answer: (a).Closed System
Q20.
A pressure cooker is an example of which of the following?

a.

Closed System

b.

Open System

c.

Isolated System

d.

None of the mentioned

Discuss
Answer: (b).Open System
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