4.22 **Thermo - Problem 4.22****Part A**Calculate the standard enthalpy of formation of $ \text{FeS}_2 \, (\text{s}) $ at 595°C from the following data at 298.15 K. Assume that the heat capacities are independent of temperature.| Substance | $ \text{Fe(s)} $ | $ \text{FeS}_2 \, (\text{s}) $ | $ \text{Fe}_2\text{O}_3 \, (\text{s}) $ | S (rhombic) | $ \text{SO}_2 \, (\text{g}) $ ||---------------|-------------------|----------------|------------------|----------------|---------------|| $ \Delta H_f^\circ \, (\text{kJ · mol}^{-1}) $ | | | $-824.2$ | | $-296.81$ || $ \frac{C_{p,m}}{R} $ | 3.02 | 7.48 | | 2.72 | |You are also given that for the reaction: \[ 2\text{FeS}_2 (\text{s}) + \frac{11}{2} \text{O}_2 (\text{g}) \rightarrow \text{Fe}_2\text{O}_3 (\text{s}) + 4\text{SO}_2 (\text{g}), \]\[ \Delta H_r^\circ = -1655 \, \text{kJ · mol}^{-1}. \]**Express your answer to four significant figures and include the appropriate units.**\[\Delta H_f^\circ = \boxed{-178.2} \, \text{kJ/mol}\]**Submit** | **Previous Answers** | **Request Answer***Note: The calculated answer above is marked incorrect. There are 3 attempts remaining.*

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Part A Calculate the standard enthalpy of formation of FeS2 (s) at 595 °C from the following data at 298.15 K. Assume that the heat capacities are independent of temperature. Fe(s) FeS2(s) Fe2O3 (s) S(rhombic) SO2(g) Substance AH: (kJ - mol 1) -824.2 -296.81 CP m/R 3.02 7.48 2.72 You are also given that for the reaction 2FES2(s) + 402(g) → Fe2O3 (s) + 4SO2(g), AH; = -1655 kJ - mol 1 Express your answer to four significant figures and include the appropriate units. kJ AH; =- 178.2 mol Submit Previous Answers Reguest Answer X Incorrect; Try Again; 3 attempts remaining

Part A Calculate the standard enthalpy of formation of FeS2 (s) at 595 °C from the following data at 298.15 K. Assume that the heat capacities are independent of temperature. Fe(s) FeS2(s) Fe2O3 (s) S(rhombic) SO2(g) Substance AH: (kJ - mol 1) -824.2 -296.81 CP m/R 3.02 7.48 2.72 You are also given that for the reaction 2FES2(s) + 402(g) → Fe2O3 (s) + 4SO2(g), AH; = -1655 kJ - mol 1 Express your answer to four significant figures and include the appropriate units. kJ AH; =- 178.2 mol Submit Previous Answers Reguest Answer X Incorrect; Try Again; 3 attempts remaining

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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