Practice question · Numerical answer
A process releases 4500 J of heat reversibly to surroundings held at 250 K. Compute the entropy change of the SURROUNDINGS in J/K.
Hints
- The surroundings absorb the heat the system releases, so their q is positive.
- Compute 4500 / 250.
Show the answer
18 (answers within ±0.2 count)
Why
J/K. The surroundings gain entropy even though the system lost heat, and it is this gain that can license a spontaneous process in which the system’s own entropy falls.
Practise Entropy and the Second Law
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