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Constants in Van’t Hoff Equation

Posted: Sun Feb 23, 2020 9:47 pm
by Drew Myers 4G
Are deltaS and deltaH considered constant when comparing a reaction at two different temperatures, or are other variables in the equation constant?

Re: Constants in Van’t Hoff Equation

Posted: Sun Feb 23, 2020 9:50 pm
by Naji Sarsam 1F
Yes, delta S and delta H are assumed to not be temperature-dependent, meaning constant, when using the vant hoff equation

Re: Constants in Van’t Hoff Equation  [ENDORSED]

Posted: Sun Feb 23, 2020 9:50 pm
by Chem_Mod
In the Van’t Hoff Equation, deltaS and deltaH are constant when comparing the same reaction at two different temperatures.

Re: Constants in Van’t Hoff Equation

Posted: Sun Feb 23, 2020 9:52 pm
by DanielTalebzadehShoushtari2A
In the Van't Hoff equation, both deltaS and deltaH are assumed to be constant independent of temperature, however, only deltaH shows up in the most easily usable form of the equation.

Re: Constants in Van’t Hoff Equation

Posted: Sun Feb 23, 2020 11:41 pm
by kristi le 2F
The entropy and enthalpy are different at different temperatures but their delta's are the same.