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Calculate standard free energy of formation of `H_2O_((l))`. The standard enthalpy of formation of `H_2O_((l))` is 285.85 kJ and standard entropies of `H_(2(g)), O_(2(g)) and H_2O_((l))` are130.5, 205.0 and 70.3 J.`K^(-1) "mole"^(-1)` respectively.

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`-237.36 kJ "mole"^(-1)`
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