Endothermic vs. Exothermic

Emma Scholes 1L
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am

Endothermic vs. Exothermic

What is the difference between an endothermic reaction and an exothermic reaction?

505095972
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am

Re: Endothermic vs. Exothermic

An endothermic reaction requires energy, while an exothermic reaction releases energy.

Cody Do 2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: Endothermic vs. Exothermic

When temperature increases, if the reaction is endothermic, then the products are favored. Conversely, if the temperature is decreased for an endothermic reaction, then the reactants are favored.

When temperature increases for an exothermic reaction, then the reactants are favored. Conversely, if the temperature is decreased for an exothermic reaction, then the products are favored.

Lauren Ho 2E
Posts: 70
Joined: Tue Oct 09, 2018 12:16 am

Re: Endothermic vs. Exothermic

here is a visual representation:
Attachments

vaishali 1D
Posts: 61
Joined: Fri Sep 28, 2018 12:19 am

Re: Endothermic vs. Exothermic

If the reaction is endothermic, then the products are favored when temperature increases.

If the reaction is exothermic, then the reactants are favored when temperature increases.

The opposite is true for each of the above statements when temperature decreases.

lindsey_ammann_4E
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

Re: Endothermic vs. Exothermic

When a reaction is endothermic, think of heat as a reactant.
When a reaction is exothermic, think of heat as a product.

Sophia Ding 1B
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am

Re: Endothermic vs. Exothermic

For exothermic, you can think of heat being released, so it would be reactants --> products + heat. Vice versa, for an endothermic reaction heat is required for the reaction to proceed, so it would look like reactants + heat --> products. So if temperature was increased, equilibrium would shift opposite of where heat is, the direction depending on if the reaction is endothermic or exothermic.

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

Re: Endothermic vs. Exothermic

Hi! Another thing to think about is that exothermic reactions heat up their surrounding areas, while endothermic reactions cool down surrounding areas.

Heesu_Kim_1F
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

Re: Endothermic vs. Exothermic

Exothermic reaction gives a net release of heat and thus would result in delta H to be a negative value.
Endothermic reaction requires heat and thus would result in delta H to be a positive value.

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