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06/10/2020 1:05 pm
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ΔSsurr for an exothermic reaction is
(a) always positive
(b) always negative
(c) zero
(d) may be positive or negative.
1 Answer
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06/10/2020 1:06 pm
(d) may be positive or negative.
Explanation:
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.