1.

The degree of dissociation of water in a 0.1 M aqueous solution of HCl ata certain temperature t^(@)C is 3.6 xx 10^(-15). The temperature t must be : [density of water at t^(@)C = 1 gm//mL.]

Answer»

`lt 25^(@)C`
`= 25^(@)C`
`GT 25^(@)C`
INSUFFICIENT data to predict

Solution :`K_(W) = 55.5 x 3.6 XX 10^(-15) xx 0.1 = 2 xx 10^(-14)`
Hence temperature MUST be `gt 25^(@)C`.


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