reaction of iron oxide with heated aluminium os used to join cracked machine parts. Explain

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Solution

Dear Student, The thermite welding or thermic welding is the process of welding the joints of iron using thermit reaction. Thermit reaction is the reaction of metal oxide with the aluminum. The aluminum acts as a reducing agent and the reaction is highly exothermic and hence called a thermite reaction. The aluminium reduces the oxide of another metal, most of the times, it is iron oxide (FeO) because aluminium is highly reactive. The reaction involved can be shown as: Fe2O3 + 2Al â†’ 2Fe + Al2O3. Regards

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