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Topic: Kw's (Ionization constant of water) exponential growth with temperature  (Read 1115 times)

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Offline ace999

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Hey!

I was wondering why the Kw value increases exponentially with temperature. I know this is given in Van't Hoff's equation, but I want to understand it in regards to chemistry, not just the equations.

Thank you!

Offline ace999

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Kw's (Ionization constant of water) exponential growth with temperature
« Reply #1 on: December 18, 2023, 12:21:32 AM »
Hey!

I was wondering why the Kw value increases exponentially with temperature. I know this is given in Van't Hoff's equation, but I want to understand it in regards to chemistry, not just the equations.

Thank you!

Offline billnotgatez

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Re: Kw's (Ionization constant of water) exponential growth with temperature
« Reply #2 on: December 18, 2023, 02:57:14 AM »
we only post a given question once
i merged your duplicate here
see forum rules

Offline Borek

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Re: Kw's (Ionization constant of water) exponential growth with temperature
« Reply #3 on: December 18, 2023, 03:30:58 AM »
Van't Hoff equation IS chemistry, you can easily derive it from thermodynamic considerations (assuming ΔH0 and ΔS0 don't depend on the temperature - which in general isn't true, but holds reasonably well as long as the temperature differences aren't too large).
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