Van't Hoff Equation

[Charisse Vu 1H]

Can someone go over how the van't hoff equation was derived from delta g and how K plays a role in the equation? Thanks!

[Jacey Yang 1F]

The equation is derived from the two equations deltaG = deltaH - TdeltaS and deltaG = -RTlnK set equal to each other. The equation is used to find out how the change in K of a chemical reaction relates to the change in temperature, given a standard enthalpy change.

[Sukanya Mohapatra 2G]

Van't hoff is derived from ΔG=ΔH−TΔS and ΔG= -RTlnK. The Van 't Hoff equation relates the change in the equilibrium constant, Keq, of a chemical reaction to the change in temperature, T, given the standard enthalpy change, ΔH.

[705302428]

It's derived from delta g because delta G equals delta H-T delta S as well as -RTlnK so you can set those two equations equal to each other and solve for lnK.