How can 1 liter gasoline produce 2 kilogram CO2?

Question

Yesterday I was in a museum (Museon, Den Haag) where was said that 1 liter gasoline produces more then 2 kilogram CO2. Please explain this.

In: Chemistry

Answer 1

CO2 consist from C (carbon) and O2 (oxygen). Fuel needs air in able to combust. The carbon is from the fuel, but the O2 is taken from air. So the weight of CO2 consists from combination of the fuel and incoming air.