MHT CET Chemistry question

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

Answer: (B)

Solution

2.1 g Fe = 2.1/56 = 0.0375 mol, so heat evolved per mole of FeS = 3.77/0.0375 = 100.5 kJ and the heat

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Question ID VK-064480