Can fire burn in oxygenated water?
If water contains oxygen, also there is fuel and heat, can a fire burn in water? The answer is yes it can, but only if the fuel forms stronger oxygen bonds than does hydrogen, so that the fuel is able to dissociate the oxygen from hydrogen in the water molecule.
What does oxygen do to fire?
Oxygen supports the chemical processes that occur during fire. When fuel burns, it reacts with oxygen from the surrounding air, releasing heat and generating combustion products (gases, smoke, embers, etc.). This process is known as oxidation.
Can petrol fire be extinguished by water?
Since water is heavier than petrol, petrol will come above the water and continue the contact with the atmosphere (oxygen). Already the existing temperature of the atmosphere will be high due to the fire, most of the water poured will evaporate faster. So, we cannot stop the petrol fires using water.
How can we put off fire at a petrol pump explain in detail?
The fires caused by the burning of inflammable materials like oil or petrol are also extinguished by using carbon dioxide fire extinguishers. Carbon dioxide used for extinguishing fire can be stored as a liquid at high pressure in cylinders.
Why can’t we use water for the fire at petrol pump?
We can’t use water at fire at petrol pump because of we use water , the petrol will float over water and rather than extinguishing the fire , the fire will spread more fiercely in a large area. Fire Extinguisher cylinders are already available on every petrol pump to prevent fires.
Why water is not used in fire?
Water is a good conductor of electricity. The person gets electric shock when it comes in contact with the water which is used to extinguish fire. Due to this reason, water is not used to put off the fire caused due to electricity.
How is Fire extinguished at airports and petrol pumps Class 8?
Answer: At airports and petrol pumps fire is extinguished by using foam type fire extinguisher.
Which of the following can be used to extinguish fire at the petrol pump?
carbon dioxide
Which gas is required for combustion?
Oxygen
Which of the following is used to extinguish fire?
Sodium bicarbonate, regular or ordinary used on class B and C fires, was the first of the dry chemical agents developed. In the heat of a fire, it releases a cloud of carbon dioxide that smothers the fire. That is, the gas drives oxygen away from the fire, thus stopping the chemical reaction.