Question

With the help of a chemical equation, explain how a soda-acid fire extinguisher helps in putting out a fire.

September 27, 2024

Answer

Soda-acid fire extinguisher contains sodium bicarbonate and sulphuric acid, which are in separate containers in them. When knob of the fire extinguisher is pressed, then sulphuric acid mixes with sodium bicarbonate solution and produces a lot of CO2 gas, which forms a blanket over the fire and cuts it off from the supply of the air to the burning substance and the fire stops.

. 2𝑁𝑎𝐻𝐶𝑂₃ + 𝐻₂𝑆𝑂₄ → 𝑁𝑎₂𝑆𝑂₄ + 2𝐻₂𝑂 + 2𝐶𝑂₂

𝑆𝑜𝑑𝑖𝑢𝑚 ℎ𝑦𝑑𝑟𝑜𝑔𝑒𝑛𝑐𝑎𝑟𝑏𝑜𝑛𝑎𝑡𝑒 𝑆𝑢𝑙𝑝ℎ𝑢𝑟𝑖𝑐 𝑎𝑐𝑖𝑑 𝑆𝑜𝑑𝑖𝑢𝑚 𝑠𝑢𝑙𝑝ℎ𝑎𝑡𝑒 𝑊𝑎𝑡𝑒𝑟 𝐶𝑎𝑟𝑏𝑜𝑛 𝑑𝑖𝑜𝑥𝑖𝑑𝑒

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