Study of two possible transformations for carbon combustion.
M.C.Q.: Choose the correct answer(s)
🇫🇷 French Version
Transformation 1
Model of complete carbon combustion
Transformation 2
Model of incomplete carbon combustion
1.
In the initial state, transformation 1 contains:
4
5
6
7
carbon atoms,
6
12
oxygen atoms, and
6
12
dioxygen molecules.
2.
The initial states of these two transformations have the same number of:
carbon atoms
oxygen atoms
dioxygen molecules
3.
The initial and final states of transformation 1 contain the same number of:
carbon atoms
oxygen atoms
dioxygen molecules
carbon dioxide molecules
moving molecules
4.
The initial and final states of transformation 2 contain the same number of:
carbon atoms
oxygen atoms
dioxygen molecules
carbon monoxide molecules
moving molecules
5.
Transformation 1 corresponds to:
complete carbon combustion
incomplete carbon combustion
6.
Transformation 2 corresponds to:
complete carbon combustion
incomplete carbon combustion
7.
Carbon combustion is incomplete when:
carbon monoxide is formed
there are more carbon atoms than dioxygen molecules
there are fewer carbon atoms than dioxygen molecules
8.
The symbolic equation for transformation 1 is:
C + O
2
→ CO
2
2
C + O
2
→ CO
2
C +
2
O
2
→ CO
2
9.
The symbolic equation for transformation 2 is:
2
C +
2
O
2
→
2
CO
2
C + O
2
→
2
CO
C +
2
O
2
→
2
CO
10.
The following situation:
gives:
📊 RESULT:
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