Question
State second law of thermodynamics in terms of entropy.
✓
Answer
The second law of thermodynamics states that the total entropy of the system and its surroundings (universe) increases in a spontaneous process.
OR
Since all the natural processes are spontaneous, the entropy of the universe increases.
It is expressed mathematically as
$\triangle S_{Total} = \triangle S_{system} + \triangle S_{surr} > 0$
$\triangle S_{Universe} = \triangle S_{system} + \triangle S_{surr} > 0$
OR
Since all the natural processes are spontaneous, the entropy of the universe increases.
It is expressed mathematically as
$\triangle S_{Total} = \triangle S_{system} + \triangle S_{surr} > 0$
$\triangle S_{Universe} = \triangle S_{system} + \triangle S_{surr} > 0$
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