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Van't Hoff Equation

Posted: Fri Feb 22, 2019 12:34 pm
by Emily Ng_4C
What is the purpose and concept behind the Van't Hoff Equation?

Re: Van't Hoff Equation

Posted: Fri Feb 22, 2019 12:43 pm
by Giselle1B
According to Lavelle's lecture the Van't Hoff equation "can be used to calculate k [equilibrium] at a different temperature if delta H is known."
The equation is lnk=(-delta h/RT) + (delta S/R). The Detla H and S are both in standard state.

Re: Van't Hoff Equation

Posted: Tue Feb 26, 2019 12:44 pm
by hanna_maillard3B
what do you mean calculate K at a different temperature ?

Re: Van't Hoff Equation

Posted: Tue Feb 26, 2019 12:49 pm
by Emma Scholes 1L
K varies by temperature, so the Van Hoff equation is used to calculate K at a different temperature. If you know delta H and the K value at one temperature, you can use the equation to find K at a different temperature.