exothermic reactions

[Katie Bart 1I]

Why does adding heat to an exothermic reaction favor the reactants?

[Ryan Narisma 4G]

Hello! When you are given that the reaction is exothermic, then the reaction produces heat. In this case you can think of the addition of heat (whether endothermic or exothermic) as a product or a reactant in the reaction. You would essentially treat heat like you would with concentrations. If heat is a product (meaning that rxn is exothermic), then the addition of heat "raises the concentration of heat as a product" and then the reaction would proceed to produce more reactants. Similarly, if heat is a reactant (meaning that the rxn is endothermic and requires heat to complete the rxn), then the addition of heat "raises the concentration of heat as a reactant" and then the rxn would proceed to produce more products. I hope this helps!

[ALegala_2I]

Does this mean that cooling an exothermic reaction will favor the products?

[Jessica Katzman 4F]

An exothermic reaction creates heat- therefore if heat is considered a "reactant," the reaction will lean to the product side as it can produce more products with the increase in heat.

[BNgo_2L]

Does this mean that cooling an exothermic reaction will favor the products?

By "cooling," I assume you mean removing heat, so yes, cooling an exothermic reaction will remove the heat "on the product side" and will therefore favor the products (shift right).

[205405339]

reverse reaction is endothermic thus forming reactants when heat is added

[alex_4l]

An easy way to remember it is
T increase, shift left
T decrease, shift right

[205291012]

An exothermic reaction means heat is given off (similar to it being on the product side). Think of it as increasing products (or heat in this case) would favor reactants.

[005321227]

yes, cooling will favor the products!

[Keya Jonnalagadda 1A]

To remember this concept easily, you can think of this in simplified terms: You can think of heat as a reactant in endothermic reactions, and a product in exothermic reactions. Thus, if you increase the temperature (adding heat) to an exothermic reaction, you will favor the reactants, just like with other reactions. Then, if you cool it by removing heat from an exothermic reaction, you will favor the products, just like with other reactions.

[Ruth Glauber 1C]

I use this to remember: if temperature increases, exothermic reactions shift to the left and everything is "the opposite".

[Mariah]

Does this mean that cooling an exothermic reaction will favor the products?

I think this would be correct. Can someone explain why?

[Michelle Xie 2B]

In an exothermic reaction, the heat is written as a product. Increasing a product would push the reaction to the left and favor the reactants.

[CameronDis2K]

It is part of LeChatlier's Principle: adding heat to a reaction will favor the other side of the reaction (wherever "heat" is added- reactant or product side). Exothermic reactions have "+heat" on the products side, therefore increasing the heat (or adding more heat) will favor the other side -- the reactants.

[Emil Velasco 1H]

Adding heat to an exothermic reaction favors reactants because heat is a product, so thereby increasing the product, it favors the formation of reactants

[andrewcj 2C]

Using Le'Chatlier's principle, the system will work to counteract the changes brought upon it. Therefore, heating the reaction favors the reactants, as this uses up the heat. Conversely, cooling the reaction favors the products, as it would release heat, restoring the initial state.

[Radha Patel 4I]

Exothermic reactions release heat when temperature increases, that heat is then favored towards the reactants where the heat is being absorbed. It also increases the product, so the reactants must increase to compensate for the rise in products.

[705367472]

Exothermic reactions release heat causing the pressure to increase.

[stephaniekim2K]

In an exothermic reaction, heat is produced, so there is heat in the products. Adding heat to the reaction would favor the reactants.

[Sean Tran 2K]

Increasing heat in an exothermic reaction favors the reactants.