Chemical Engineering - Chemical Engineering Thermodynamics - Discussion

Discussion Forum : Chemical Engineering Thermodynamics - Section 11 (Q.No. 15)
15.
Entropy of a substance remains constant during a/an __________ change.
reversible isothermal
irreversible isothermal
reversible adiabatic
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Rampravesh yadav said:   5 years ago
Agree @Ashutosh.

Ashutosh yadav said:   1 decade ago
TdS = Q (definition for entropy) ;.
Now Q = 0 (reversible adiabatic) which leads to TdS=0.

DS = 0;
S = constant.
(1)

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