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Enthalpies of Formation (Section)Ethanol (C2H5OH) is
Chapter 3, Problem 79E(choose chapter or problem)
Problem 79E
Enthalpies of Formation (Section)
Ethanol (C2H5OH) is currently blended with gasoline as an automobile fuel. (a) Write a balanced equation for the combustion of liquid ethanol in air.
(b) Calculate the standard enthalpy change for the reaction, assuming H2O(g) as a product. (c) Calculate the heat produced per liter of ethanol by combustion of ethanol under constant pressure. Ethanol has a density of 0.789 g/mL. (d) Calculate the mass of CO2 produced per kJ of heat emitted.
Questions & Answers
QUESTION:
Problem 79E
Enthalpies of Formation (Section)
Ethanol (C2H5OH) is currently blended with gasoline as an automobile fuel. (a) Write a balanced equation for the combustion of liquid ethanol in air.
(b) Calculate the standard enthalpy change for the reaction, assuming H2O(g) as a product. (c) Calculate the heat produced per liter of ethanol by combustion of ethanol under constant pressure. Ethanol has a density of 0.789 g/mL. (d) Calculate the mass of CO2 produced per kJ of heat emitted.
ANSWER:
Problem 79E
Enthalpies of Formation (Section)
Ethanol is currently blended with gasoline as an automobile fuel. (a) Write a
balanced equation for the combustion of liquid ethanol in air.
(b) Calculate the standard enthalpy change for the reaction, assuming as a
product. (c) Calculate the heat produced per liter of ethanol by combustion of ethanol
under constant pressure. Ethanol has a density of 0.789 g/mL. (d) Calculate the mass of
produced per kJ of heat emitted.
Step by Step Solution
Step 1 of 4
(a)
Combustion of liquid ethanol in air oxygen givesand .
The balanced reaction is as follows.