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Advanced A Level Organic Chemistry: Complete & incomplete combustion of ALKANES
1.4 Complete and incomplete combustion of alkanes and environmental pollution Part 1. ALKANES and the PETROCHEMICAL INDUSTRY - Doc Brown's Advanced A Level Organic Chemistry Revision Notes email doc brown - comments - query? ALL my advanced A level organic chemistry notes
See also all the basics with lots of equations are described on ALKANES - saturated hydrocarbons - basic introduction - complete combustion Fossil fuel air pollution - incomplete combustion, carbon monoxide & soot particulates Air pollution - effects of sulfur oxides and nitrogen oxides including a local acid rain project! EXTRA NOTES for Advanced A Level Chemistry students Complete combustion - enthalpy of combustion trend in alkanes The combustion of linear alkanes and linear aliphatic alcohols The standard enthalpies of complete combustion ΔHθcomb (at 298K, 1 atm = 101kPa) are listed below (4 sf)
General formula of these homologous series: Alkanes CnH2n+2
Graph interpretation and comments
For more on enthalpy changes see Energetics-Thermochemistry-Thermodynamics Notes INDEX
(handy equation style for solving bond enthalpy calculations) for propane: C3H8(g) + 5O2(g) ==> 3CO2(g) + 4H2O(l) for butane: C4H10(g) + 61/2O2(g) ==> 4CO2(g) + 5H2O(l)
for heptane: C7H16(g) + 11O2(g) ==> 7CO2(g) + 8H2O(l) So the only products are water and carbon dioxide. (note the use 6½ is perfectly legitimate)
Incomplete combustion
Formation of acidic oxides and environmental air pollution
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Doc Brown's Advanced Level pre-university Organic Chemistry of the alkane
homologous series |