Endothermic Reactions Spontaneous






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Julia Go 2L
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Joined: Sun Sep 30, 2018 12:17 am
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Endothermic Reactions Spontaneous

Postby Julia Go 2L » Sun Feb 24, 2019 7:08 pm

Is it ever possible that a endothermic reaction can be spontaneous? If so, under what circumstances?

Eshwar Venkat 1F
Posts: 32
Joined: Fri Sep 28, 2018 12:22 am

Re: Endothermic Reactions Spontaneous

Postby Eshwar Venkat 1F » Sun Feb 24, 2019 7:21 pm

As we know, reactions where deltaG (deltaH - T*deltaS) < 0 are spontaneous. Endothermic reactions can be spontaneous if the entropy is negative, or, if the entropy is also positive, the temperature is high enough such that T*deltaS > deltaH.

Eva Guillory 2E
Posts: 44
Joined: Fri Sep 28, 2018 12:22 am

Re: Endothermic Reactions Spontaneous

Postby Eva Guillory 2E » Sun Feb 24, 2019 7:34 pm

Here is a table which might help:
Image


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