Question

What volume of oxygen gas `(O_(2))` measured at `0^(@)C` and 1 atm is needed to burn completely `1 L` of propane gas `(C_(3)H_(8))` measured under the same condition?
A. 5 L
B. 10 L
C. 7 L
D. 6 L

Answer 1

Correct Answer - A
`underset(1)(C_(3)H_(8))+underset(5)(5O_(2))rarrunderset(3)(3CO_(2))+underset("4")(4H_(2)O)underset("(volume)")`
So 1 volume or 1 litre of propane requires 5 volume or 5 litre of O2 to burn completely.