Moles,Density and Concentration MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Moles,Density and Concentration, 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 Moles,Density and Concentration 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 Moles,Density and Concentration mcq questions that explore various aspects of Moles,Density and Concentration problems. Each MCQ is crafted to challenge your understanding of Moles,Density and Concentration 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 Moles,Density and Concentration MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

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Moles,Density and Concentration MCQs | Page 5 of 10

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Q41.
The Velocity of water in a pipe of area 5 m² is 10 m/s, what will be the flow rate of water?

a.

25 m³/s

b.

50 m³/s

c.

75 m³/s

d.

100 m³/s

Discuss
Answer: (b).50 m³/s
Q42.
A liquid of density 0.1 kg/m³ is flowing through a pipe at a rate of 15 kg/s, what will be the area of the pipe if the fluid Velocity is 5 m/s?

a.

30 m²

b.

45 m²

c.

75 m²

d.

90 m²

Discuss
Answer: (a).30 m²
Q43.
1 mole of Carbon dioxide enters in a reactor at a rate of 0.25 kg/s and leaves it at the rate of 1 kg/s, what are the number of moles of carbon dioxide leaves the reactor?

a.

0.25

b.

0.5

c.

0.75

d.

1

Discuss
Answer: (a).0.25
Q44.
A Composition of carbon dioxide, oxygen and nitrogen with mole ratio 1:2:5 with 4 moles of oxygen, enters a reactor with a flow rate of 100 kg/s, the ratio of rates of leaving the reactor of the three is 5:2:1, and 5 moles of nitrogen leaves the reactor, what is the total number of moles leaving the reactor?

a.

6.1

b.

6.2

c.

6.3

d.

6.4

Discuss
Answer: (b).6.2
Q45.
10 moles of oxygen divides and enters two reactors flow rate 45 kg/s and leaves the reactors at the flow rates of 6 kg/s and 9 kg/s, what are number of moles of oxygen that leaves the reactor with 9 kg/s?

a.

180

b.

450

c.

60

d.

90

Discuss
Answer: (d).90
Q46.
10 Kg/s of a fluid with density 10 Kg/m³ is passed into a tank of capacity 50 m³, how much time will it take to fill the tank?

a.

5 Second

b.

50 Second

c.

500 Second

d.

5000 Second

Discuss
Answer: (b).50 Second
Q47.
15 Kg/s of a fluid with density 5 Kg/m³ is passed into a tank of capacity 30 m³, how much time will it take to fill the tank?

a.

3 Second

b.

10 Second

c.

30 Second

d.

100 Second

Discuss
Answer: (b).10 Second
Q48.
20 Kg/s of a fluid with density 5 Kg/m³ is passed into a tank of capacity 60 m³, how much time will it take to fill the tank?

a.

5 Second

b.

10 Second

c.

15 Second

d.

20 Second

Discuss
Answer: (c).15 Second
Q49.
16 grams of oxygen is passed in the process in 5 minutes, what is the molar flow rate?

a.

0.1 mole/min

b.

1 mole/min

c.

10 mole/min

d.

16 mole/min

Discuss
Answer: (a).0.1 mole/min
Q50.
24 grams of CH₄ is passed in the process in 3 minutes, what is the molar flow rate?

a.

0.1 mole/min

b.

0.3 mole/min

c.

0.5 mole/min

d.

0.7 mole/min

Discuss
Answer: (c).0.5 mole/min
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