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Chemical Engineering · Q39

Chemical Engineering Thermodynamics

Engineering and GATE · Chemical Engineering · question 39

Q39

For spontaneous changes in an isolated system (S = entropy)

A.
Ds = 0
B.
Ds <0
C.
Ds > 0
Answer
D.
Ds = Constant

Answer: Option C

Solution

Answer: Option C
Solution:
By second law of thermodynamics the
For an isolated system
for an irreversible (nothing but spontaneous process)   and for an reversible (or the system at equilibrium)
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