Concept explainers
Interpretation: The amount of energy required to extract 6 mol of tin from tin (II) oxide needs to be determined.
Concept Introduction: The change in enthalpy by formation of a compound in 1 mole from its constituent elements in their standard state is said to be standard heat of formation. The
Where m and n are stoichiometric numbers.
Answer to Problem 6E
The amount of energy required to extract 6 mol of tin from tin (II) oxide
Explanation of Solution
The balanced chemical reaction for the extraction of tin from tin (II) oxide is:
The value of heat of formation of all the species involved in the reaction is:
The
Substituting the values:
Thus, the heat of reaction for the extraction of 2 moles of tin from 2 moles of tin (II) oxide is
Since, the amount of energy required to extract 2 moles of tin is
Hence, the amount of energy required to extract 6 mol of tin from tin (II) oxide
Thus,
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