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relationship between entropy and enthalpy

Posted: Fri Mar 13, 2020 4:49 pm
by Kaylee Clarke 1G
how ∆S is related to ∆H for a change at constant temperature and pressure?

Re: relationship between entropy and enthalpy

Posted: Fri Mar 13, 2020 5:28 pm
by jisulee1C
at constant temperature and pressure, the two are related through this equation: ∆S=∆H/T (from ∆G = ∆H - T∆S, when ∆G = 0)

Re: relationship between entropy and enthalpy

Posted: Fri Mar 13, 2020 5:33 pm
by Diana A 2L
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.