Ethanol, c2h5oh, is used as a fuel for motor vehicles, particularly in brazil. (a) write the balanced equation for the combustion of ethanol to co2(g) and h2o(g), and, using the data in appendix g, calculate the enthalpy of combustion of 1 mole of ethanol. (b) the density of ethanol is 0.7893 g/ml. calculate the enthalpy of combustion of exactly 1 l of ethanol. (c) assuming that an automobile's mileage is directly proportional to the heat of combustion of the fuel, calculate how much farther an automobile could be expected to travel on 1 l of gasoline than on 1 l of ethanol. assume that gasoline has the heat of combustion and the density of nοoctane, c8h18 ( = ο208.4 kj/mol; density = 0.7025 g/ml).
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