Question

The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of powdered aluminum metal and 1 mol of iron(III) oxide yields liquid iron and solid aluminum oxide. How many grams of the mixture are needed to produce 304 kJ of heat? Data: ?H°f(Al(s)) = 0 kJ/mol ?H°f(Fe2O3(s)) = -825.5 kJ/mol ?H°f(Fe(l)) = 12.4 kJ/mol ?H°f(Al2O3(s)) = -1675.7 kJ/mol

          The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of powdered aluminum metal and 1 mol of iron(III) oxide yields liquid iron and solid aluminum oxide. How many grams of the mixture are needed to produce 304 kJ of heat?

Data:
?H°f(Al(s)) = 0 kJ/mol
?H°f(Fe2O3(s)) = -825.5 kJ/mol
?H°f(Fe(l)) = 12.4 kJ/mol
?H°f(Al2O3(s)) = -1675.7 kJ/mol

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The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of powdered aluminum metal and 1 mol of iron(III) oxide yields liquid iron and solid aluminum oxide. How many grams of the mixture are needed to produce 304 kJ of heat?

Data:
?H°f(Al(s)) = 0 kJ/mol
?H°f(Fe2O3(s)) = -825.5 kJ/mol
?H°f(Fe(l)) = 12.4 kJ/mol
?H°f(Al2O3(s)) = -1675.7 kJ/mol

Added by Cynthia R.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Suman K

05/30/2022

Step 1

The balanced equation for the reaction is: 2Al(s) + Fe2O3(s) -> 2Fe(l) + Al2O3(s) From the balanced equation, we can see that the reaction releases 825.0 kJ/mol of Fe2O3(s). Since we want to produce 304 kJ of heat, we can set up the following proportion: 825.0 Show more…

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The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of powdered aluminum metal and 1 mol of iron(III) oxide yields liquid iron and solid aluminum oxide. How many grams of the mixture are needed to produce 304 kJ of heat? Data: ΔH°f(Al(s)) = 0 kJ/mol ΔH°f(Fe2O3(s)) = -825.5 kJ/mol ΔH°f(Fe(l)) = 12.4 kJ/mol ΔH°f(Al2O3(s)) = -1675.7 kJ/mol

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