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Because petrol had high chemical energy in its' structure and just need activation energy (fire) for it to react with air.
In case of water, in presence of oxygen, any possible reaction such as H2O + 1/2O2 -> H2O2 will need huge additional energy to react thus it absorb energy. And for the matter of mechanism, it is not even possible to revert H2O to H2O2 directly without electrolysis of water to H2 and O2 first. It's thus not burn with fire.
What else can I help you with?
How would patience be a water to the fire of conflict?
A conflict is like a 'fire'. Water puts out the fire. Petrol makes the fire stronger. Water or petrol poured on the fire(conflict )
Why should water not be used to put out an electrical fire or fire in a petrol tank?
Water is a conductor of electricity, so using it to put out an electrical fire can result in electric shock or spreading the fire. In the case of a petrol tank fire, water is denser than petrol and can cause the petrol to spread, making the fire larger. It may also cause an explosion due to the rapid vaporization of water.
Can you set fire to a river?
Petrol will float on the surface of water, as petrol is less dense than water. So, it would be possible to set fire to a river, provided petrol is poured over the surface first!
Why does only water cut off oxygen and not petrol when poured on fire?
Because petrol is a combustible substance. Water is inert.
What will happen if petrol is mixed with water and stirred?
Petrol and water do not mix as they have different densities and chemical properties. The two liquids will separate into distinct layers, with the petrol floating above the water due to its lower density. It is not a safe practice as mixing them can pose a fire hazard.
Why water should not be used to put off fire caused by petrol?
It actually is used, but only to cool the burning structures. If you add water to a large oil or gas fire, it would carry the burning fuel around, since the fuel is lighter and will float on the water.
Why does petrol catch fire but not the water?
There are various ways to extinguish a petrol/gasoline/flammable liquid fire.Water is heavier than petrol and will just have the effect of spreading the fire, Petro-chem fires are nearly always extinguished with chemical foam which forms a blanket over the flames and cuts off the oxygen supply. The worst thing you can turn on a petrol fire is a hosepipe. But if you want to sell your Damaged extinguisher then halon.us is the best place for it.
Which thing catch fire most early in diesel or petrol?
Petrol will catch fire first, petrol is highly flammable, diesel is not.
Can patrol and water mix?
Water,which is havier than petrol,slips down permiting the patrol to rise to the surface. & therefore cant be mixed. this is also a reason due to which petrol fire cant be extingueshed by water.
What is firing point of petrol?
fire point of petrol
What do water fire extinguishers do?
They are idea for dealing with wood and paper fires. Never use water on live electrical or petrol fires
What are the dangers of a petrol station?
Petrol stations are potentially very dangerous, because petrol is fire hazard. If petrol leaks from pump for any reasons eg petrol nuzzle misused, or pipe crack or gets damages then petrol can leak onto forecourt and catch fire or even explode.
