Which one is correc for H_(2)O at 25^(0)C

1.	Which one is correc for H_(2)O at 25^(0)C
Answer» Ionic PRODUCT of water `K_(w) = 10^(-14)` Equilibrium constant for dissociation of water `(Kc = 1.8 xx 10^(-16))` Autoprotolysis constant of water `(k = 3.2 xx 10^(-) xx 10^(18))` `K_(w)` increases with RISE in temperature Solution :`H_(2)O hArr H^(+) + OH^(-)` `K_(C) = ([H^(+)][OH^(-)])/([H_(2)O]) = (10^(-7) xx 10^(-7))/(55.55) = 1.8 xx 10^(-16)`

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