Baking soda, (sodium bicarbonate) is used in class C fire extinguishers. When sodium bicarbonate (baking soda) is heated by the fire it becomes sodium carbonate. The carbon dioxide starves the fire of oxygen smothering the fire …
Sodium bicarbonate melts and decomposes at 270 deg C on heating. The equilibrium reaction. 2NaHCO —→ 3 H2O + CO2+ Na2CO3. This reaction is thermodynamically endothermic (forward reaction). Thus ultimae effect of fire fighter becomes absorbing heat from the fire. Moreover, the melting point of sodium bi carbonate is quite high enough withstand the temperature.
How does baking soda work as fire extinguisher? – Fire safety
Sodium bicarbonate is used in most dry fire extinguishers. When dispensed, the products absorb heat, decompose to form fire smothering carbon dioxide , and release free radicals which interrupt the flame chain reaction mechanism.
The fire extinguisher : It consists of a cylinder filled with a solution of sodium bicarbonate . there is also a capsule of dilute sulphuric acid in it. When the knob is pressed the acid in the capsule spills on the sodium bicarbonate. As a result of the chemical reaction that takes place, carbon dioxide is produced and it gushes out of cylinder ,and as carbon dioxide neither burns nor …
People Also Ask how does sodium bicarbonate work in fire extinguishers
Why sodium bicarbonate is used in fire extinguisher?
Sodium bicarbonate is used in fire extinguishers due to its ability to produce carbon dioxide gas. Many fire extinguishers contain sodium bicarbonate, sulphuric acid, and water. When these substances are mixed together, the reaction produces carbon dioxide gas. Simply so, why baking soda is used in fire extinguisher?
What happens when sodium bicarbonate is heated?
Sodium bicarbonate melts and decomposes at 270 deg C on heating. The equilibrium reaction This reaction is thermodynamically endothermic (forward reaction). Thus ultimae effect of fire fighter becomes absorbing heat from the fire. Moreover, the melting point of sodium bi carbonate is quite high enough withstand the temperature.
Why is baking soda used as a fire extinguisher?
Baking soda, (sodium bicarbonate) is used in class C fire extinguishers. When sodium bicarbonate (baking soda) is heated by the fire it becomes sodium carbonate. The carbon dioxide starves the fire of oxygen smothering the fire and the water that is released cools the heat source.
What is the Ultimae effect of sodium bi carbonate on fire?
This reaction is thermodynamically endothermic (forward reaction). Thus ultimae effect of fire fighter becomes absorbing heat from the fire. Moreover, the melting point of sodium bi carbonate is quite high enough withstand the temperature.
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Sodium Bicarbonate: A fire extinguisher? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher