Ethanol, c2h6o, is most often blended with gasoline - usually as a 10 percent 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 364 grams of 2-methylheptane ? kcal assuming the same efficiency, would 364 grams of ethanol provide more, less, or the same amount of energy as 364 grams of 2-methylheptane?