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Explain the mechanism of soda acid fire extinguisher . Write the reaction involved |
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Answer» Nacl+NH3+H2O+CO2—NAHCO3+NH4CL \tThe container of soda acid fire extinguisher holds a sodium bicarbonate solution.\tThe screw-on cap contains a plunger mechanism which is covered by a safety guard. Below the plunger is a glass phial containing sulphuric acid.\tWhen the plunger is struck, the glass phial is broken and the acid and sodium bicarbonate mix together (observe the diagram given below).\tThe resulting chemical reaction produces carbon dioxide gas which pressurises the space above the liquid forcing it out through the internal pipe to the nozzle.\tThe chemical reaction that takes place in the soda-acid fire extinguisher is as follows:\t2NaHCO3 + H2SO4\xa0→ Na2SO4 + 2H2O + 2CO2 Refer to chemistry book |
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