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The above chemical equation represents the reaction process between iron and sulfuric acid to produce sodium sulfate and oxygen gas. Specifically, two molecules of sodium peroxide (Na2O2) react with one molecule of sulfur dioxide (SO2) to produce two molecules of sodium sulfate (Na2SO4).
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Reaction conditions: For the reaction to take place, both reactants need to come into contact with each other under suitable pressure and temperature. For this reaction, the temperature must be higher than room temperature and pressure is needed to prevent SO2 gas from escaping.
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Reaction process: When sodium peroxide and sulfur dioxide come into contact with each other, they will start to react. In this process, sodium peroxide will release oxygen and bond with sulfur dioxide to form sodium sulfate. This is a simple spontaneous process, without the need for a catalyst.
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Occurrence phenomena: The reaction will generate heat and the white solid of sodium sulfate. If the reaction takes place in a sealed environment, sulfur dioxide gas can be seen being absorbed into the mixture and the white solid of sodium sulfate appears.