Entropy Changes Due to Temperature

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Louise Lin 2B
Posts: 97
Joined: Sat Aug 17, 2019 12:15 am

Entropy Changes Due to Temperature

Postby Louise Lin 2B » Sun Feb 02, 2020 5:16 pm

For entropy changes due to temperature, does it vary depending on whether or not the reaction is exothermic or endothermic? I was thinking that increasing temperature for an endothermic reaction would actually decrease the entropy of the system...

DesireBrown1J
Posts: 98
Joined: Wed Sep 18, 2019 12:18 am

Re: Entropy Changes Due to Temperature

Postby DesireBrown1J » Sun Feb 02, 2020 5:24 pm

The equation for change in entropy is delta(S)=qrev/T. As temperature increases, the change in entropy will decrease because temperature is in the denominator. Exothermic and endothermic have to do with changes in temperature but in this case, temperature is remaining constant (from what I understood from the textbook), so we don't have to worry about it being endothermic or exothermic with entropy.

Ryan Chang 1C
Posts: 105
Joined: Sat Aug 24, 2019 12:17 am

Re: Entropy Changes Due to Temperature

Postby Ryan Chang 1C » Mon Feb 03, 2020 6:12 pm

Although exothermic and endothermic are two different reactions, in terms of calculating entropy, you don't have to worry about whether the reaction is exothermic or endothermic. The change in temperature will always be calculated as T(final) - T(initial).


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