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Determine the entropy change for the rea...

Determine the entropy change for the reaction given below:
`2H_(2)(g) +O_(2)(g) rarr 2H_(2)O(l)`
at `300K`. If standard entropies of `H_(2)(g), O_(2)(g)`, and `H_(2)O(l)` are `126.6, 201.20`, and `68.0 J K^(-1) mol^(-1)`, respectively.

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