The entropy change for the reaction given below is `2H_(2)(g)+O_(2)(g)rarr2H_(2)O(l)` is ... At `300K` . Standard entropies of `H_(2)(g),O_(2)(g)` and `H_(2)O(l)` are `126.6,201.20` and `68.0JK^(-1)mol^(-1)` respectively.A. `-318.4JK^(-1)mol^(-1)`B. `318.4xxJK^(-1)mol^(-1)`C. `31.84xxJK^(-1)mol^(-1)`D. None of these

The entropy change for the reaction given below is `2H_(2)(g)+O_(2)(g)

1.	The entropy change for the reaction given below is `2H_(2)(g)+O_(2)(g)rarr2H_(2)O(l)` is ... At `300K` . Standard entropies of `H_(2)(g),O_(2)(g)` and `H_(2)O(l)` are `126.6,201.20` and `68.0JK^(-1)mol^(-1)` respectively.A. `-318.4JK^(-1)mol^(-1)`B. `318.4xxJK^(-1)mol^(-1)`C. `31.84xxJK^(-1)mol^(-1)`D. None of these
Answer» Correct Answer - A `DeltaS_("Reaction")=SigmaS_("product")-SigmaS_("reactant")` `=2xxS_(H_(2)O)-[2xxS_(H_(2))+So_(2)]` `=2xx68-[2xx126.6+201.20]=-318.4JK^(-1)mol^(-1)`

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