1.

Reaction,H_(2)(g)+I_(2)(g)rarr2HI(g)DeltaH=-12.40 kcal.According to this, the heat of formation of HI will be

Answer»

12.4 KCAL
`-12.4` kcal
`-6.20` kcal
6.20 kcal

Solution :HEAT of formation is for 1 mole.
Hence `DeltaH_(F)^(@)(HI)=-12.40//2=-6.20 kcal`.


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