Endothermic vs. Exothermic  [ENDORSED]

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K Stefanescu 2I
Posts: 68
Joined: Fri Sep 29, 2017 7:04 am

Endothermic vs. Exothermic

Postby K Stefanescu 2I » Mon Nov 27, 2017 9:45 am

If the question does not tell us, how are we to identify if a reaction is exothermic or endothermic?

Sohini Halder 1G
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Joined: Thu Jul 13, 2017 3:00 am
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Re: Endothermic vs. Exothermic  [ENDORSED]

Postby Sohini Halder 1G » Mon Nov 27, 2017 12:54 pm

The question will always tell you. However, if the enthalpy value given is negative, it is exothermic, meaning the rxn gives off heat, and if the enthalpy value given is positive, the rxn requires heat.

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