Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 41)
41.
The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
54 comments Page 2 of 6.

Deepak said:   8 years ago
Constant pressure, Constant volume, and polytropic process (PV^n) is REVERSIBLE.

The correct answer is FALSE.

Ramana said:   8 years ago
@ALL.

It is not pv power n it is pvn.

Shrikrishna said:   8 years ago
The Correct answer is false. Because all are a reversible process.

Naresh Grandhe said:   8 years ago
Irreversibility is related to entropy, we can see the above-mentioned processes follow a curve in a T-s diagram and hence they are irreversible.

Rajesh Rank said:   8 years ago
I read in Khurmi Book, he mentioned that all process is reversible other then polytropic, polytropic is an irreversible process.

As per Khurmi Answer is FALSE.

Maheesh said:   8 years ago
Except throttling and free expansion, all are reversible processes.

Vishnu prabhakar said:   8 years ago
These are reversible non flow processes.

Wachaspati Singh pal said:   8 years ago
Constant volume constant pressure constant temperature isothermal process and pvn is a reversible process.

And throttling is an irreversible process.

Mzyur said:   5 years ago
Answer should be reversible process.

Mahesh kumar said:   8 years ago
Incorrect is the answer because all these processes are reversible.


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