© Dr. Steve Rapp, 2004
Combustion Reaction
n
C
3
H
8
(g) + O
2
(g)
CO
2
(g) + H
2
O(l)
n
Balance C:
n
C
3
H
8
(g) + O
2
(g)
3CO
2
(g) + H
2
O(l)
n
Balance H:
n
C
3
H
8
(g) + O
2
(g)
3CO
2
(g) + 4H
2
O(l)
n
Balance O:
n
C
3
H
8
(g) + 5O
2
(g)
3CO
2
(g) + 4H
2
O(l)
n
Meaning:
1 mol C
3
H
8
reacts with 5 mol O
2
to
form 3 mol CO
2
and 4 mol H
2
O