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Standard entropies ofH(2)(g),O(2)(g) " a...

Standard entropies of`H_(2)(g),O_(2)(g) " and "H_(2)O(l)` are respectively 126.6, 201.2 and `68JK^(-1)mol^(-1)` Determine `DeltaS" for "2H_(2)(g)+O_(2)(g) to 2H_(2)O(l)` at `25^(@)C`.

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The correct Answer is:
`-318.4JK^(-1)mol^(-1)`
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The absolute entropies of H_(2(g)), O_(2(g)) and H_2O_((l)) are respectively 130.6, 205.1 and 69.9 JK-mol^(-1) . Calculate the value of DeltaS for the formation of one mole liquid water.

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The standard enthalpies of formation of H_(2)O_(2(l)) and H_(2)O_((l)) " are " -187.8 kJ "mole"^(-1) and -285.8 kJ "mole"^(-1) respectively. The Delta H^(0) for the decomposition of one mole of H_(2)O_(2(l)) " to " H_(2)O_((l)) and O_(2(g)) is

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