Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 18)
18.
The entropy __________ in an irreversible cyclic process.
remains constant
decreases
increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
36 comments Page 3 of 4.

Deep patel said:   1 decade ago
As per the clausius statement dQ/T <= 0 for irreversible cyclic process. i.e., entropy is always less than zero.

Venkat said:   1 decade ago
Irreversible means factors are not restored like heat. Hence for irreversible processes entropy increases.

Jenin raj said:   9 years ago
How to easily understand the reversible (Carnot cycle), irreversible and entropy process?

Shibunath said:   1 decade ago
They said increased or decreased they did not mention less than zero or more than zero.

Lalit said:   8 years ago
Entropy will remain constant as it point function and here the process is cyclic.

Biswaranjan Biswal said:   1 decade ago
For a cyclic process entropy change is always less than or equal to zero.

Bharadwaj said:   9 years ago
Entropy can never be > zero.

Change in entropy can be < 0.

Rajp said:   6 years ago
How entropy is an external property of a system?

Vikram singh said:   1 decade ago
Entropy is less than 0 in irreversible process.

S. Bera said:   8 years ago
Entropy is a external property of the system.
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