We know that K_w=10^(-14) at 298*K. How would K_w evolve at 373*K?

Aug 23, 2017

Would you not expect it to be greater than ${K}_{w}$ at $298 \cdot K$?

Explanation:

We know that at $298 \cdot K$,

$2 {H}_{2} O r i g h t \le f t h a r p \infty n s {H}_{3} {O}^{+} + H {O}^{-}$, ${K}_{w} = {10}^{-} 14 = \left[{H}_{3} {O}^{+}\right] \left[H {O}^{-}\right]$.

This site relates that ${K}_{w} = 51.3 \times {10}^{-} 14$ at $373 \cdot K$. Because this is manifestly a BOND-BREAKING reaction, we would expect that the given equilibrium LIES farther to the right. Does the given value support this expectation........?

What is $p H$ at this temperature?

Aug 23, 2017

The link below gives you information on this.