## endothermic reaction

WGaines_2E
Posts: 47
Joined: Mon Nov 18, 2019 12:18 am

### endothermic reaction

say we have reaction A+B -> C + D and delta H is positive. Does that mean you add heat to the left or right side of the reaction?

Jacob Motawakel
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### Re: endothermic reaction

If you add heat to this reaction, the concentration of products will increase since it is an endothermic reaction. I don't think you can add heat to a specific side.

Subashni Rajiv 1K
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Joined: Wed Sep 18, 2019 12:16 am

### Re: endothermic reaction

If a reaction is endothermic, you can treat heat as a reactant, but you wouldn't actually write it out.

Kylie Lim 4G
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Joined: Sat Aug 17, 2019 12:15 am

### Re: endothermic reaction

If deltaH is a positive value, the reaction is endothermic so heat is consumed in the reaction. In order for it to be consumed it would have to be in the reactants side but you wouldn't normally write it into the equation as a reactant, you just think of it as a reactant so that you can use Le Chatlier's principle to see it's affect on equilibrium.

EthanPham_1G
Posts: 104
Joined: Sat Jul 20, 2019 12:17 am

### Re: endothermic reaction

If delta H is positive that means that heat is absorbed in the reaction. The heat is on the left with the reactants.

Zaynab Hashm 2I
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Joined: Wed Sep 11, 2019 12:15 am
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### Re: endothermic reaction

if you mean the part of the reaction (reactants or products) in which heat would be written;

with reactants if delta H is + (meaning reaction is endothermic, thus absorbing heat)
with products if delta H is - (meaning reaction is exothermic, thus releasing heat)

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