Practice question · Numerical answer
An isolated system undergoes a process in which one part gains 12 J/K of entropy and another loses 7 J/K. Compute the total entropy change in J/K.
Hints
- Add the two contributions.
- Compute 12 - 7.
Show the answer
5 (answers within ±0.2 count)
Why
J/K. A part of an isolated system may lose entropy; the second law constrains only the total, which must not decrease.
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