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30-01-2020
Physics

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Why is it that carbon dioxide should be under high pressure for fire extinguisher?

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31-01-2020

Answer:

Carbon dioxide (CO2) extinguishers contain a mixture of liquid and gaseous carbon dioxide (a nonflammable gas). CO2 is normally a gas at room temperature and pressure. It has to be stored under high pressure to make it a liquid. When you release the pressure, the gas expands enormously and makes a huge white jet.

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