1.

2.1 g of Fe combines with S evolving 3.77 kJ. The heat of formation of FeS (in kJ/mol) is

Answer»

`-1.79`
100.5
`-3.77`
NONE of these

Solution :`DeltaH//mol` of `FES=(3.77xx56)/(2.1)=100.5`


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