Endo/exothermic

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LNgo 1G
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Joined: Sat Aug 24, 2019 12:16 am

Endo/exothermic

Postby LNgo 1G » Thu Jan 16, 2020 4:40 pm

In a reaction where X2 -> 2X is it considered endothermic or exothermic and why? (X stands for any element)

Julie_Reyes1B
Posts: 105
Joined: Sat Jul 20, 2019 12:16 am

Re: Endo/exothermic

Postby Julie_Reyes1B » Thu Jan 16, 2020 4:43 pm

This would be endothermic because the bonds are being broken which requires energy. That means that the reaction must take in energy in order to proceed, thus it is endothermic.

Abby Soriano 1J
Posts: 103
Joined: Sat Aug 24, 2019 12:16 am

Re: Endo/exothermic

Postby Abby Soriano 1J » Thu Jan 16, 2020 4:43 pm

In this reaction, you're breaking a bond to get from X2 to 2X. Since energy is required to break a bond, the reaction is endothermic.

Nicholas_Gladkov_2J
Posts: 125
Joined: Sat Aug 17, 2019 12:17 am

Re: Endo/exothermic

Postby Nicholas_Gladkov_2J » Thu Jan 16, 2020 4:59 pm

LNgo 1G wrote:In a reaction where X2 -> 2X is it considered endothermic or exothermic and why? (X stands for any element)


If bonds are broken, it requires energy, thus in the reaction that you gave, it would be endothermic (requires energy to proceed).
If bonds are created, it releases energy, thus in the reverse reaction you gave, it would be exothermic (releases energy to proceed).


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