Temperature change

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Maria Solis Disc 1G
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Temperature change

Postby Maria Solis Disc 1G » Tue Jan 22, 2019 1:08 am

I know that when you change a rxn's condition the reaction is moved from equilibrium, but I was wondering how an increase or decrease in temperature specifically effected a reaction.

kamalkolluri
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Re: Temperature change

Postby kamalkolluri » Tue Jan 22, 2019 10:21 am

With temperature, in an endothermic (reaction that requires heat), increasing temperature favors formation of products; In an exothermic reaction (a reaction that releases heat), increasing temperature favors formation of reactants.

Tam To 1B
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Re: Temperature change

Postby Tam To 1B » Tue Jan 22, 2019 10:22 am

The increase in temperature depends on whether the reaction is exothermic or endothermic.

If a reaction is endothermic, an increase in temperature will make it proceed to the right and produce more products. This means the reverse reaction is exothermic, so a decrease in temperature will make it proceed to the left and produce reactants.

If a reaction is exothermic, a decrease in temperature will make it proceed to the right and produce products. This means the reverse reaction is endothermic, so an increase in temperature will make it proceed to the left and produce more reactants.

Just remember that an increase in temperature shifts the reaction in the endothermic direction.

Jake Gordon 1A
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Re: Temperature change

Postby Jake Gordon 1A » Tue Jan 22, 2019 2:29 pm

It depends if the reaction is endothermic or exothermic. If it is endothermic and heat is added, the reaction will move in the forward direction. If the reaction is exothermic it will do the reverse.

Also, these reactions have reverse reactions. If one way is endothermic the other way will be exothermic and vice versa.

Kyleigh Follis 2H
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Re: Temperature change

Postby Kyleigh Follis 2H » Tue Jan 22, 2019 4:23 pm

Why does an increase in temperature with an endothermic reaction favor the formation of products? Conversely, why does an increase in temperature with an exothermic reaction favor the formation of reactants?

vaishali 1D
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Joined: Fri Sep 28, 2018 12:19 am

Re: Temperature change

Postby vaishali 1D » Wed Jan 23, 2019 9:23 am

It'll depend on if the reaction is endo- or exo- thermic.

If endothermic, the reaction will move to the right when heat is added.

If exothermic, the reaction will move to the left when heat is added.


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