What does exergy principle state? - Thermodynamics

Q.  What does the exergy principle state?
- Published on 21 Aug 15

a. The exergy of an isolated system can never decreases, but always increases
b. The exergy of an isolated system can never increases, but always decreases
c. The exergy of an isolated system can either increases or decreases
d. cannot say

ANSWER: The exergy of an isolated system can never increases, but always decreases

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