1.

For the reaction 2H_(2)(g)+O_(2)(g) to 2H_(2)O(g), DeltaH^(ө)=-573.2kJ The heat of decomposition of water per mole is

Answer»

286.6 kJ
573.2 kJ
`-28.66 kJ`
zero

Solution :HEAT of decomposition of water is
`H_(2)O(G)to H_(2)(g)+(1)/(2)O_(2)(g),DeltaH=(+573.2)/(2)=286.6kJ//mol`


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