entropy hard

Question

Entropy of isolated system during real (irreversible) process:

RankGuru · Accepted Answer

The **Principle of Increase of Entropy** states that for any real, spontaneous (irreversible) process in an isolated system, the total entropy always increases.
$\Delta S_{total} > 0$
- For an ideal, reversible process, $\Delta S_{total} = 0$.
- Entropy never decreases in an isolated system. This gives 'time' a direction, as processes always move towards states of higher entropy (and thus higher probability/disorder).

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entropy hard

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