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Calculate the standard enthalpy change H r x n for the reaction of F e 2 O 3 ( s ) and C...

Question:

Calculate the standard enthalpy change {eq}\Delta H_{rxn}^{\circ} {/eq} for the reaction of {eq}Fe_2O_3(s) {/eq} and {eq}CO(g) {/eq} to form {eq}Fe_3O_4(s) {/eq} and {eq}CO_2(g) {/eq} given the standard enthalpies of formation ({eq}\Delta H^{\circ}_f {/eq}) shown in the table below. Include the sign of the value in your answer.

{eq}\begin{matrix} Compound & \Delta H^{\circ}_f (kJ/mol)\\ Fe_2O_3(s) & -824.2\\ CO(g) & -110.5\\ Fe_3O_4(s) & -1118.4\\ CO_2(g) & -393.5 \end{matrix} {/eq}

Enthalpy Change:

The heat released/absorbed during any product formation is written along with the thermochemical equation. This value is temperature dependent and is a characteristic value for that reaction. This is called enthalpy change.

Answer and Explanation: 1

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Given Data:

  • The standard enthalpy formation of {eq}{\rm{F}}{{\rm{e}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}} {/eq} is -824.2 kJ/mol.
  • The standard enthalpy...

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Enthalpy of Reaction | Formula, Equations & Examples

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Chapter 13 / Lesson 4
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Learn about enthalpy of reaction and enthalpy change formula. Understand what Delta H is, the Delta H equation, and how to calculate the enthalpy of reaction.


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