Question

Given that the self-ionization of water is endothermic, what is the value of pH + pOH at 50 degrees Celcius?

Answer 1

A) > 14
B) 14
C) < 14

Answer 2

Please do not comment unless you are making a serious attempt at the problem

Answer 3

Here is the perfect website for your question:
https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Acids_and_Bases/Acids_and_Bases_in_Aqueous_Solutions/The_pH_Scale/Temperature_Dependence_of_the_pH_of_pure_Water

Answer 4

I couldn't think of any simpler way to help without directly giving the answer.

Answer 5

\(H_2O~+~\color{red}{heat}\) <=> \(H^+ + OH^-\)

at \(25^o\) C pH + pOH is 14

if you heat it further the reaction goes in the forward direction and more ions are produced

\(k_w = [H^+][OH^-]\)
\(pK_w = pH + pOH\)
more the ions more the \(k_w\) less the \(pK_w\)

Answer 6

Thank you c;