Reversible and Irreversible Processes NEET Questions

Physics - Thermodynamics

Reversible and Irreversible Processes MCQ Questions


13.
In a reversible process, which of the following is true?
A.
Entropy increases
B.
Entropy decreases
C.
Entropy remains constant
D.
Entropy change is zero
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ANSWER :
C. Entropy remains constant
14.
For an irreversible process, the entropy change of the universe is:
A.
Zero
B.
Negative
C.
Equal to internal energy change
D.
Greater than zero
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ANSWER :
D. Greater than zero
15.
What is the key difference between reversible and irreversible processes?
A.
Heat transfer is maximum
B.
Work done is minimum
C.
Process is very slow and controlled
D.
System remains in equilibrium
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ANSWER :
C. Process is very slow and controlled
16.
Which of the following is an irreversible process?

NEET - 2022

A.
Quasistatic expansion
B.
Free expansion
C.
Isothermal compression
D.
Adiabatic expansion
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ANSWER :
B. Free expansion
17.
In a reversible process, the system and surroundings:
A.
Are always in thermal equilibrium
B.
Are always in mechanical equilibrium
C.
Remain in equilibrium throughout
D.
Are always at different temperatures
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ANSWER :
C. Remain in equilibrium throughout
18.
The total entropy change for a reversible process is:
A.
Positive
B.
Negative
C.
Zero
D.
Infinite
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ANSWER :
C. Zero