Question

How does carbon dioxide help in extinguishing fire?​

Answer 1

Carbon dioxide extinguishers work because carbon dioxide molecules are heavier than oxygen molecules. When the liquid carbon dioxide inside the extinguisher expands into a gas, the carbon dioxide pushes out any oxygen surrounding the fire.

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Answer 2

Answer:

Carbon dioxide work by displacing oxygen, or taking away the oxygen  The carbon dioxide is also very cold as it comes out of the extinguisher, so it cools the fire .