Dry ice is used in fire extinguishers. The dry ice is stored in the cylinder in a solid form. When sprayed on a fire it quickly changes into the gas known as carbon dioxide ( ${CO}_{2}$ ). What is the change of state called?

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Sublimation

Condensation

Distillation

Evaporation

answer is A.

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Detailed Solution

Dry ice is utilized in fire extinguishers because the dry ice which is kept in the cylinder is in solid form and when it's sprinkled on a fire it quickly converts into the gas known as carbon dioxide( CO2). The change of state is called Sublimation.

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