### Derive

Posted:

**Sat Feb 29, 2020 1:01 am**How can you derive ln(K1/K2)= -delta H/R (1/T1 - 1/T2) from the Van't Hoff equation given on the formula sheet: lnK=-delta H/RT + delta S/R ? Thank you in advance.

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=136&t=60606

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Posted: **Sat Feb 29, 2020 1:01 am**

How can you derive ln(K1/K2)= -delta H/R (1/T1 - 1/T2) from the Van't Hoff equation given on the formula sheet: lnK=-delta H/RT + delta S/R ? Thank you in advance.

Posted: **Sat Feb 29, 2020 11:27 am**

See your class notes. I did this step by step in class.

Posted: **Sat Feb 29, 2020 11:57 am**

WYacob_2C wrote:How can you derive ln(K1/K2)= -delta H/R (1/T1 - 1/T2) from the Van't Hoff equation given on the formula sheet: lnK=-delta H/RT + delta S/R ? Thank you in advance.

it honestly would probably be easier to just memorize it than try deriving it during the test

Posted: **Sat Feb 29, 2020 12:26 pm**

Agreed. My TA recommended us know the process derivation of course but he also said not to depend on just the derivation on the exams as they would take up time. Just focus on the final formula and we should be good

Posted: **Mon Mar 02, 2020 8:12 pm**

In theory we should know how to derive it but no test/exam question has ever had us derive an equ before.