MCQ
$\Delta S_{surr}$ for an exothermic reaction is
- Aalways positive
- Balways negative
- Czero
- ✓may be positive or negative
✓
Answer
Correct option: D.
may be positive or negative
d
Heat is released in an exothermic process which increases the entropy of surroundings. When entropy of the system is positive, overall entropy change is also positive. In some exothermic reactions, entropy of system may decrease.
Heat is released in an exothermic process which increases the entropy of surroundings. When entropy of the system is positive, overall entropy change is also positive. In some exothermic reactions, entropy of system may decrease.
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