Welding utilizes a variety of fuels. Two such fuels identified for comparison are acetylene (ethyne C₂H₂(g)) and propylene (propene C₂H6(g)). Fuel acetylene propylene Molar enthalpy of combustion (kJ/mol) -1 300.8 -2 058.1

Chemistry: The Molecular Science
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Chapter4: Energy And Chemical Reactions
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Problem 55QRT: Gasohol, a mixture of gasoline and ethanol, C2H5OH, is used as automobile fuel. The alcohol releases...
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a) How would you find the molar enthalpy (in kJ/g) for each fuel and would they compare with each other?

 

b) what are two other factors that can be used to evaluate the fuels

Welding utilizes a variety of fuels. Two such fuels identified for
comparison are acetylene (ethyne C₂H₂(g)) and propylene
(propene C₂H6(g)).
Fuel
acetylene
propylene
Molar enthalpy of combustion
(kJ/mol)
-1 300.8
-2 058.1
Transcribed Image Text:Welding utilizes a variety of fuels. Two such fuels identified for comparison are acetylene (ethyne C₂H₂(g)) and propylene (propene C₂H6(g)). Fuel acetylene propylene Molar enthalpy of combustion (kJ/mol) -1 300.8 -2 058.1
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