Heat of formation of water is -272 kJ. How much water can be decomposed by 750 kJ of heat? [MH CET 2011]

MHT CET Chemistry question

Heat of formation of water is kJ. How much water can be decomposed by 750 kJ of heat? [MH CET 2011]

Answer: (C)

Decomposing 1 mol of water needs 272 kJ, so 750 kJ decomposes $750/272 = 2.76 ≈

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Question ID VK-064596