Assignment:
Three common hydrocarbons that contain four carbons are listed here, along with their standard enthalpies of formation
1,3 Butadiene, C4H6(g), 111.9 Kj/mol
1-Butene, C4H8 (g), 1.2 Kj/mol
n-butene, C4H10(g) -124.7Kj/mol
Heat formation
a) For each o these substances calculate the molar enthalpy of combustion to CO2 (g) and H20 (l)
b) Calculate the fuel value in kj/g for each of these compounds.
c) For each hydrocarbon, determien the percentage of hydrogen by mass
d) By comparing your answers for partcs b and c, propose a relationships between hydrogen content and fuel value in hydrocarbons.
Provide complete and step by step solution for the question and show calculations and use formulas.