Ethanol, C2H5OH, can be produced from sugars and starches, from crops such as co
ID: 851244 • Letter: E
Question
Ethanol, C2H5OH, can be produced from sugars and starches, from crops such as com or sugarcane. The ethanol is used as a fuel or gasoline additive, and when burned, it combines with O2 to form H2O and CO2. Write a balanced equation for the complete combustion of C2H5OH. How many moles of CO2 arc produced from each mole of C2H5OH completely burned? How many moles of O2 arc required to completely bum 1 mole of C2H5OH? Strictly on a heat release basis, both in terms of kJ/mol and BTU/lb, Ethanol is a less desirable fuel than Ethane. Write one or two sentences to explain why this is the case.Explanation / Answer
a. Balance by inspection.
a. Balance by inspection.
b. Use the ratio of the coefficients.
c. Use the ratio of the coefficients.
a. Balance by inspection.
b. Use the ratio of the coefficients.
c. Use the ratio of the coefficients.
d. Combustion is an oxidation process. The ethanol is partially oxidized; the ethane is not. So, burning ethane requires more oxygen than burning ethanol, which produces more heat.
d. Combustion is an oxidation process. The ethanol is partially oxidized; the ethane is not. So, burning ethane requires more oxygen than burning ethanol, which produces more heat.
b. Use the ratio of the coefficients.
c. Use the ratio of the coefficients.
d. Combustion is an oxidation process. The ethanol is partially oxidized; the ethane is not. So, burning ethane requires more oxygen than burning ethanol, which produces more heat.
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