Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 5 (Q.No. 28)
28.
The entropy may be expressed as a function of
pressure and temperature
temperature and volume
heat and work
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 2 of 3.

Varun said:   8 years ago
That is a change in entropy. Absolute entropy has a different formula only dependent on p and t @Vivek.

Bapugouda said:   8 years ago
Answer is A & B correct @Om Nagar.

Om Nagar said:   8 years ago
Work is high grade energy so entropy can not be expresse as function of work,

Entropy express as function of T&P, T&V, and heat.

So correct answer is A&B.

Mohammedh said:   1 decade ago
I do not think that's where entropy can be expressed as a function of pressure, temperature and volume.

Priyanshu said:   8 years ago
Entropy is a function of all available options.

So, D is the correct answer.

Priyanka said:   8 years ago
I think entropy is a function of heat and temperature.

Sweta said:   8 years ago
Tds = U+pdV.
Q = T * dS.

UnAvailable energy = f(W) = f(S) where f means function.

It can be expressed in both volume and pressure as well as temperature.

Harsh said:   9 years ago
I think D is the correct answer.

Ram said:   9 years ago
Yes, entropy is a function of t,p,v.

Hardik gohil said:   9 years ago
According to me, answer A and B both are correct. Answer C is not because entropy change is associate with flow of heat only not with flow of work.


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