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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
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Enthalpies of Formation (Section)Ethanol (C2H5OH) is

Chapter 3, Problem 79E

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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.

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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.                          

                     

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