Relationship b/w ∆H and ∆S


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Relationship b/w ∆H and ∆S

Postby 705192887 » Fri Mar 15, 2019 9:10 pm

So on the Thermodynamics outline on the class website, one of the bullet points says: "Show how ∆S is related to ∆H for a change at constant temperature and pressure and explain the relationship"

Can someone explain this concept and how to show it?

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Re: Relationship b/w ∆H and ∆S

Postby skyeblee2F » Fri Mar 15, 2019 9:31 pm

Based of the Gibbs free energy equation (∆G = ∆H - T∆S) a spontaneous reaction will always occur when ∆H is negative and ∆S is positive, and a reaction will always be non-spontaneous when ∆H is positive and ∆S is negative.

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