1.

For the reaction, H_2(g)+1/2O_2(g)→H_2O(l),

Answer»

`7.63xx (373-297)-68.3`
`7.63xx 10^-3xx(373-298)-68.3`
`7.63xx 10^-3xx(373-298)+68.3`
`7.63xx(373-297)+68.3`

ANSWER :B


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