Practice question · True or false
The entropy of an isolated system can spontaneously decrease.
Hints
- The second law constrains the direction of spontaneous change.
- For an isolated system the quantity can hold steady or rise, never fall.
Show the answer
False
Why
The second law: . Entropy of an isolated system never decreases spontaneously; it can only stay the same (reversible) or increase (irreversible).
Practise Second Law of Thermodynamics and Entropy
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