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Topic: Kw's (Ionization constant of water) derivation  (Read 1028 times)

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Offline ace999

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Kw's (Ionization constant of water) derivation
« on: December 26, 2023, 10:18:45 AM »
Hey!
In this video: https://www.youtube.com/watch?v=-GDAYSTCem4

They take ΔS and ΔH (under standard conditions) to be constant. Why is that?
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Offline Borek

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Re: Kw's (Ionization constant of water) derivation
« Reply #1 on: December 26, 2023, 10:32:19 AM »
That's only and approximation, known to be in general wrong, but if the T1 and T2 don't differ too much, the differences between ΔS/ΔH at T1 and T2 are negligible.
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