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Chemistry, 13.11.2019 22:31 shartman22
Ethanol, c2h6o, is most often blended with gasoline - usually as a 10 per cent mix - to create a fuel called gasohol. ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. the heat of combustion of ethanol is 326.7 kcal/mol.
the heat of combustion of 2-methylheptane, c8h18, is 1.306×103 kcal/mol. how much energy is released during the complete combustion of 394 grams of 2-methylheptane ?
assuming the same efficiency, would 394 grams of ethanol provide more, less, or the same amount of energy as 394 grams of 2-methylheptane?
a. more or
b. less or
c. the same amount
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