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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

The standard molar heat of formation of ethane, and are respectively , , and kcal. The standard molar heat of combustion of ethane will be

Answer: (A)

Solution

C2H6 + 7/2 O2 -> 2CO2 + 3H2O(l): = [2(-94.1) + 3(-68.3)] - (-21.1) = -188.2 - 204.9 +

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Question ID VK-064475