Introduction to Energy Balances MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Introduction to Energy 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 Introduction to Energy 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 Introduction to Energy Balances mcq questions that explore various aspects of Introduction to Energy Balances problems. Each MCQ is crafted to challenge your understanding of Introduction to Energy 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 Introduction to Energy 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 Introduction to Energy 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 Introduction to Energy Balances knowledge to the test? Let's get started with our carefully curated MCQs!

Introduction to Energy Balances MCQs | Page 2 of 37

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Q11.
What is the change in internal energy for a process which has final and initial states are exactly similar?

a.

Positive

b.

Negative

c.

Zero

d.

Cannot say

Discuss
Answer: (c).Zero
Q12.
What is the change in internal energy of 2 mole of air (Cv = 2.1 X 10⁴ J/mole°C), if its temperature changes from 10°C to 20°C?

a.

420 kJ

b.

540 kJ

c.

840 kJ

d.

1050 kJ

Discuss
Answer: (a).420 kJ
Q13.
What is the change in internal energy of 1 mole of air ((Cv = 2.1 X 10⁴ J/mole°C), if its temperature changes from 10°C to 5°C?

a.

84 kJ

b.

105 kJ

c.

– 84 kJ

d.

– 105 kJ

Discuss
Answer: (d).– 105 kJ
Q14.
Ratio of change in internal energy of a substance from 4°C to T and from T to 10°C is 2, what is T?

a.

5°C

b.

6°C

c.

7°C

d.

8°C

Discuss
Answer: (d).8°C
Q15.
Ratio of change in internal energy of a substance from 15°C to T and from T to 10°C is – 2, what is T?

a.

5°C

b.

15°C

c.

20°C

d.

30°C

Discuss
Answer: (a).5°C
Q16.
Total energy of the universe is always ______

a.

Increasing

b.

Decreasing

c.

Constant

d.

Cannot say

Discuss
Answer: (c).Constant
Q17.
A stone has initial potential and kinetic energy as 10 J and 5 J respectively, if the final potential energy of the stone is 15 J what is its final kinetic energy?

a.

0

b.

5 J

c.

10 J

d.

15 J

Discuss
Answer: (a).0
Q18.
A stone has initial potential and kinetic energy as 5 J and 20 J respectively, if the final kinetic energy of the stone is 15 J what is its final potential energy?

a.

0

b.

10 J

c.

15 J

d.

25 J

Discuss
Answer: (b).10 J
Q19.
A stone has initial potential, kinetic and internal energy 4 J, 15 J and 20 J respectively, if the final kinetic energy and potential energy of the stone is 5 J and 10 J respectively, what is the final internal energy?

a.

15 J

b.

20 J

c.

24 J

d.

32 J

Discuss
Answer: (c).24 J
Q20.
A stone has initial potential, kinetic and internal energy 7 J, 10 J and 2x J respectively, if the final kinetic energy, potential energy and internal energy are 5 J, 21 J and x respectively, what is the final internal energy?

a.

2 J

b.

4 J

c.

5 J

d.

9 J

Discuss
Answer: (d).9 J
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