Combustion In Chemistry
By DarthVader
Date: 2022-04-11
Topic: 101 see comments
Post views: 1083
Combustion In Chemistry
Carbon:
The combustion process of carbon can be summarised by the following equation:
C + O2 ⇢ CO2
One atom of the element carbon (C) reacts with one molecule of the compound oxygen (O2). The right hand side of the equation indicates the product of the reaction: one molecule of the compound carbon dioxide.
The substances on the left hand side that react together are known as the 'reactants' and the substances on the right hand side that are produced by the reaction are called the ‘products’.
Chemical equation - C + O2 ⇢ CO2
Atomic masses - 12 + (2 × 16) = [12 + (2 × 16)]
Atomic masses - 12 + 32 = 44
Ratio - 12 : 32 : 44
You can apply the molar mass ratio to any balanced equation.
The ratio is the same regardless of the units used.
Methane:
Chemical Equation:
CH4 + 2O2 ⇢ CO2 + 2H2O
(one methane molecule reacts with two oxygen molecules to produce one carbon dioxide molecule and two water molecules)
Atomic Masses:
(12 + 4 × 1) + 2(2 × 16) = (12 + 2 × 16) + 2(1 × 2 + 16)
Simplified to:
16 + 64 = 44 + 36
- ⇡ —⇡ —- ⇡ --- ⇡
CH4 O2 - CO2 H2O
Ratio:
16 : 64 : 44 : 36
Iron Oxide:
Chemical Equation:
2Fe2O3 + 3C ⇢ 4Fe + 3CO2
(two iron oxide compounds react with three carbon atoms to produce four iron atoms and three carbon dioxide compounds)
Atomic Masses:
2(2 × 56 + 3 × 16) + 3 × 12 = 4 × 56 + 3(12 + 2 × 16)
Simplified to:
320 + 36 = 224 + 132
- ⇡ —- ⇡ —- ⇡ ----- ⇡
Fe2O3 C — Fe — CO2
Ratio:
320 : 36 : 224 : 132
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