A) Exothermic and randomness increases
B) Endothermic & randomness increases
C) Exothermic and randomness decreases
D) Endothermic & randomness decreases
Correct Answer: A
Solution :
[a] For exothermic reaction \[\Delta H=-ve\] and if randomness increases it means \[\Delta S\] becomes positive. Thus according to \[\Delta G=\Delta H-T\Delta S;\,\Delta G\] becomes \[-ve,\] so the reaction is spontaneous.
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