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November 01, 2025, 01:03:30 pm
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Author Topic: Calculating Equilibrium Constants - States; and Spontaneous Reactions  (Read 1826 times)  Share 

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Mao

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Re: Calculating Equilibrium Constants - States; and Spontaneous Reactions
« Reply #15 on: November 06, 2010, 05:17:48 pm »
0
Quote from: Martoman on November 06, 2010, 02:35:26 pm
Quote from: Mao on November 06, 2010, 01:08:00 pm
Quote from: toshibaj on November 05, 2010, 08:12:37 pm
Sorry for sounding dumb, but how do we know the reaction is exothermic?

From the EMF. A positive EMF means it is thermodynamically favoured, i.e. exothermic.

lol wut? I was thinking its giving off electricity == heat.

Yep, that's exactly right. (Except my explanation is not as succinct and intuitive :P)
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