### Chemistry Problem: Enthalpy and Reaction for Aluminum Oxide FormationConsider the reaction for the formation of aluminum oxide from aluminum and oxygen:\[ 4 \text{Al}(s) + 3 \text{O}_2(g) \rightarrow 2 \text{Al}_2\text{O}_3(s) \quad \Delta H_1 \]**Task:**1. **Express the enthalpy of the following reaction, \(\Delta H_2\), in terms of \(\Delta H_1\):** \[ 2 \text{Al}_2\text{O}_3(s) \rightarrow 4 \text{Al}(s) + 3 \text{O}_2(g) \quad \Delta H_2 \] \(\Delta H_2 = \) [Enter your expression]2. **Express the enthalpy of the following reaction, \(\Delta H_3\), in terms of \(\Delta H_1\):** \[ 12 \text{Al}(s) + 9 \text{O}_2(g) \rightarrow 6 \text{Al}_2\text{O}_3(s) \quad \Delta H_3 \] \(\Delta H_3 = \) [Enter your expression]**Note:** The enthalpy change \(\Delta H\) for a reaction is typically expressed in \(\text{kJ/mol}\). You need to determine how these given reactions relate to the original reaction with \(\Delta H_1\), in terms of stoichiometry and direction. **Reaction Enthalpy Expressions**For the reaction:\[ 12 \text{Al}(s) + 9 \text{O}_2(g) \rightarrow 6 \text{Al}_2\text{O}_3(s)\]Express the enthalpy, \(\Delta H_3\), in terms of \(\Delta H_1\):\[ \Delta H_3 = \underline{\hspace{4cm}}\]---For the reaction:\[2 \text{Al}(s) + \frac{3}{2} \text{O}_2(g) \rightarrow \text{Al}_2\text{O}_3(s)\]Express the enthalpy, \(\Delta H_4\), in terms of \(\Delta H_1\):\[ \Delta H_4 = \underline{\hspace{4cm}}\]---In these equations, you are asked to derive the reaction enthalpies (\(\Delta H_3\) and \(\Delta H_4\)) from another enthalpy (\(\Delta H_1\)), demonstrating an understanding of stoichiometry and thermochemical equations. Adjust the coefficients to reflect the relationship between the reactions correctly.

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Consider the reaction for the formation of aluminum oxide from aluminum and oxygen. 4 Al(s) + 30,(g) – 2 Al,O,(s) ΔΗ Express the enthalpy of the following reaction, AH2, in terms of AH1. 2 Al,0, (s) → 4 Al(s) + 30,(g) ΔΗ AH2 = Express the enthalpy of the following reaction, AH3, in terms of AH1. 12 Al(s) + 90,(g) → 6 Al,O,(s) AH3 AH3 =

Consider the reaction for the formation of aluminum oxide from aluminum and oxygen. 4 Al(s) + 30,(g) – 2 Al,O,(s) ΔΗ Express the enthalpy of the following reaction, AH2, in terms of AH1. 2 Al,0, (s) → 4 Al(s) + 30,(g) ΔΗ AH2 = Express the enthalpy of the following reaction, AH3, in terms of AH1. 12 Al(s) + 90,(g) → 6 Al,O,(s) AH3 AH3 =

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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