Chemistry
Combustion of Acetylene (ethyne) Rx:
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Why I don't do acetlyene explosions in our lab....
Combustion of alkanes
A quick review....
• Combustion reactions of alkanes consist only of C and H (hydrocarbon) • require O2(g) as a reactant • produce CO2(g) and H2O(g) and a large amount of energy!!
Oxygen can be the limiting reagent which can lead to Incomplete combustion. For complete combustion of a hydrocarbon, oxygen must be in excess.
If there isn't sufficient oxygen, incomplete combustion occurs and carbon monoxide is produced instead of carbon dioxide.
methane
oxygen
carbon monoxide
carbon
water
Balance this symbol equation for incomplete Balance this symbol equation for incomplete combustion of methane
Drag this to Drag this to the target to the target to reveal the reveal the answers. answers.
CH4
O2
CO
C
H 2O
FYI carbon is commonly called soot
• Combustion of 2,2dimethylpentane • Write the chemical formula and the balanced chemical equation for this combustion reaction.
structural diagram
Balanced equation
Sulfur in Gasoline
• Sulfur in gasoline is a pollution problem • The combustion of gasoline and therefore the combustion of sulfur produces sulfur dioxide, SO2(g) • Result acid rain (Acid rain NOx your SOx off!)
N2(g) + O2(g)>
Combustion of most nonmetals produces dioxides eg. CO2, NO2,SO2,PO2, exception H2O
Combustion cont..
• Write the chemical formula and the balanced chemical equation for the combustion of of 3,4 diethylnonane.
Incomplete Combustion &Complete Combustion
Classify the following reactions as complete or incomplete combustion.
Chapter 9 Hydrocarbons from Petroleum
9.6 Summary: Complete and Incomplete Combustion
Complete Combustion hydrocarbon + (excess) O2(g)> CO2(g) + H2O(g)
Incomplete Combustion hydrocarbon + (insufficient) O2(g) > xC(s) + yCO(g) + zCO2(g) + H2O(g) (The ratio of x:y:z largely depends on the
Back
Why I don't do acetlyene explosions in our lab....
Combustion of alkanes
A quick review....
• Combustion reactions of alkanes consist only of C and H (hydrocarbon) • require O2(g) as a reactant • produce CO2(g) and H2O(g) and a large amount of energy!!
Oxygen can be the limiting reagent which can lead to Incomplete combustion. For complete combustion of a hydrocarbon, oxygen must be in excess.
If there isn't sufficient oxygen, incomplete combustion occurs and carbon monoxide is produced instead of carbon dioxide.
methane
oxygen
carbon monoxide
carbon
water
Balance this symbol equation for incomplete Balance this symbol equation for incomplete combustion of methane
Drag this to Drag this to the target to the target to reveal the reveal the answers. answers.
CH4
O2
CO
C
H 2O
FYI carbon is commonly called soot
• Combustion of 2,2dimethylpentane • Write the chemical formula and the balanced chemical equation for this combustion reaction.
structural diagram
Balanced equation
Sulfur in Gasoline
• Sulfur in gasoline is a pollution problem • The combustion of gasoline and therefore the combustion of sulfur produces sulfur dioxide, SO2(g) • Result acid rain (Acid rain NOx your SOx off!)
N2(g) + O2(g)>
Combustion of most nonmetals produces dioxides eg. CO2, NO2,SO2,PO2, exception H2O
Combustion cont..
• Write the chemical formula and the balanced chemical equation for the combustion of of 3,4 diethylnonane.
Incomplete Combustion &Complete Combustion
Classify the following reactions as complete or incomplete combustion.
Chapter 9 Hydrocarbons from Petroleum
9.6 Summary: Complete and Incomplete Combustion
Complete Combustion hydrocarbon + (excess) O2(g)> CO2(g) + H2O(g)
Incomplete Combustion hydrocarbon + (insufficient) O2(g) > xC(s) + yCO(g) + zCO2(g) + H2O(g) (The ratio of x:y:z largely depends on the