Question

Out of these gases which one is used in fire extinguishers?Carbon Dioxide, Sulphur Dioxide, Nitrogen Dioxide ,Hydrogen Sulphide

Answer 1

Answer:

carbon dioxide

Explanation:

because CO2 is poor conductor of heat and that is why it extinguishes the fire

Answer 2

Carbon dioxide is used in fire extinguishers.

Explanation:

• Fire extinguisher is a portable apparatus which is used for putting out small fires by directing onto it a substance that cools the burning material.

• It deprives the flame of oxygen, or interferes with the chemical reactions that is occurring in the flame.

• Fire extinguishers work by separating the fuel from the oxygen.

• The oxygen comes from the air. It is the same oxygen we breathe. Since the oxygen has to be in contact with the fuel, if you can coat the fuel with something that keeps the oxygen away, the fire will go out.

Why carbon dioxide?

• Carbon dioxide is a compressed gas agent that prevents combustion by displacing the oxygen in the air surrounding the fire.

• Carbon dioxide extinguishes work by displacing oxygen, or taking away the oxygen element of the fire triangle.

• The carbon dioxide is also very cold as it comes out of the extinguisher, so it cools the fuel as well.