`2.1g` of `Fe ` combines with `S` evoling `3.77KJ` . The heat oof formation of `FeS` in `KJ//mol` is

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

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

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

The heat of combustion of carbon and monoxide are -394 and -285 KJ mol^(-1) respectively. The heat of formation of CO in KJ mol^(-1) is :-

The heat of combustion of carbon and monoxide are -394 and -285 KJ mol^(-1) respectively. The heat of formation of CO in KJ mol^(-1) is :-