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. `5L`
B. `10L`
C. `7L`
D. `6L`

Answer 1

Correct Answer - A
`{:(C_(3)H_(8),+,5O_(2),to,3CO_(2),+,4H_(2)O),("Propane",,,,,,),(1vol,,5vol,,3vol,,4vol):}`
According to the balanced equation , one volume of 1 L propane needs 5 volumes or 5L of `O_(2)` for complete combustion