The K(w) of water at two temperature 25^...

The `K_(w)` of water at two temperature `25^(@)C` and `50^(@)C` are `1.08xx10^(-14), 5.474xx10^(-14)` respectively. Assuming `DeltaH` of any reaction is neutralisation of a strong acid with strong base.

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The correct Answer is:

`-12.5xx10^(3)cal;`

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