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//"MOLE of FES"=(3.77xx56)/(2.1)=100.5`


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