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.

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

So, D is the correct answer.

Tomar said:   8 years ago
I also agree with you @Vivek.

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.

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

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

Pnkj said:   8 years ago
Yes right @Vivek.

Akash said:   8 years ago
I agree @Hardik.

Siva said:   8 years ago
Entropy is a function of temperature it is independent of pressure and volume.

Then how? pressure is given.

Vipul said:   7 years ago
Entropy is a point function which is a property of the system, thus it can be expressed in the form of other point functions, which is also obvious from tds relations. Next, like internal energy which is a point function but can be expressed as function of heat and work (Ist law) so does entropy so correct option is D.

ASURA said:   7 years ago
Entropy being an extensive property depends only on temperature and pressure which are also extensive properties if it is function of volume it would not be a extensive property as volume itself is not extensive.


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