Question

what volume of oxygen gas measured at 0c and 1 ATM is needed to burn 1l of propane gas

Answer 1

First write a balanced equation:
C3H8 + 5 O2 = 3 CO2 + 4 H2O.
If the propane and oxygen gases are at the same conditions of temperature and pressure :
1 litre of C3H8 will require 5 litres of O2 gas.

Answer 2

First write a balanced equation: C3H8 + 5 O2 = 3 CO2 + 4 H2O. If the propane and oxygen gases are at the same conditions of temperature and pressure : 1 litre of C3H8 will require 5 litres of O2 gas.  yahi hi sayad