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The standard molar heat of formation of ...

The standard molar heat of formation of ethane, `CO_(2)` and water are respectively `-21.1, -94.1 and -68.3 kcal`. The standard molar heat of combustion of ethane will be:

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`Delta H = sum Delta H_(f)^(@)("product") - sum Delta H_(f)^(@) ("recatants") = -2 xx 94.1 - 3 xx 68.3 - (-21.1) = - 372 k cal//mol` .
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VMC MODULES ENGLISH-THERMOCHEMISTRY-JEE ADVANCED (ARCHIVE)
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