Which of the following processes will always be spontaneous, regardless of the temperature?Select answer from the options belowAn endothermic reaction for which the system exhibits an increase in entropy.An exothermic reaction for which the system exhibits an increase in entropy.An endothermic reaction for which the system exhibits a decrease in entropy.An exothermic reaction for which the system exhibits a decrease in entropy.
Question
Which of the following processes will always be spontaneous, regardless of the temperature?Select answer from the options belowAn endothermic reaction for which the system exhibits an increase in entropy.An exothermic reaction for which the system exhibits an increase in entropy.An endothermic reaction for which the system exhibits a decrease in entropy.An exothermic reaction for which the system exhibits a decrease in entropy.
Solution
An exothermic reaction for which the system exhibits an increase in entropy.
This is because spontaneous processes are those that increase the entropy of the universe. An exothermic reaction releases heat, increasing the entropy of the surroundings. If the system also exhibits an increase in entropy, then both the system and the surroundings are increasing in entropy, making the process spontaneous at all temperatures.
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