relationship between entropy and enthalpy

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Kaylee Clarke 1G
Posts: 103
Joined: Fri Aug 30, 2019 12:15 am

relationship between entropy and enthalpy

Postby Kaylee Clarke 1G » Fri Mar 13, 2020 4:49 pm

how ∆S is related to ∆H for a change at constant temperature and pressure?

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

Re: relationship between entropy and enthalpy

Postby jisulee1C » Fri Mar 13, 2020 5:28 pm

at constant temperature and pressure, the two are related through this equation: ∆S=∆H/T (from ∆G = ∆H - T∆S, when ∆G = 0)
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Diana A 2L
Posts: 106
Joined: Sat Aug 17, 2019 12:16 am
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Re: relationship between entropy and enthalpy

Postby Diana A 2L » Fri Mar 13, 2020 5:33 pm

There isn’t a DIRECT relationship between entropy and enthalpy, BUT Gibbs free energy provides a relationship between both terms in the equation: delta G = delta H — T(delta S). For a system where delta G= 0, then delta S= delta H/ T , in which case there is a direct relationship.


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