2007-06-07 06:45:23 · 5 answers · asked by friend 1 in Science & Mathematics ➔ Chemistry
The burning petrol will float on top of water, which poses a danger of spreading the fire. CO2 will hover over the fire and smother it out.
2007-06-07 06:48:23 · answer #1 · answered by cattbarf 7 · 1⤊ 0⤋
A mist of water will put out a petrol fire, however if you dont do it exactly right the petrol will float on the water and spread the fire.
2007-06-07 13:50:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Water doesn't really extinguish a fire...it just affects the source or fuel of the fire. Therfore, throwing water on a wood-burning fire puts it out because fire will not burn on wet wood.
Likewise, water will not extinguish a petrol-fed fire, unless you put enough water on it to dilute the petrol and rendering it inflammable. C4O will chemically react with the source of the fire making it inflammable.
2007-06-07 13:50:10 · answer #3 · answered by jjsocrates 4 · 0⤊ 0⤋
Because H2O ind oil do not mix so it will not extinguish the fire. But if you exclude oxygen by flooding it with CO2 then the fire will go out.
2007-06-07 13:52:01 · answer #4 · answered by drochem 5 · 0⤊ 0⤋
Because oil floats over water, and CO2 blocks the oxygen necessary to keep the oil burning.
2007-06-07 13:49:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋