Train track rails are joined using an exothermic welding process. Amixture of iron (III) oxide (Fe2O3), and aluminium metal (Al) is employedand the process is described by the following chemical reaction:Fe₂O3(s) + 2Al(s) → Al₂O3(s) + 2Fe(s)AH (kJ mol-1)c(g-¹ K-1)00.451Fe(s)Fe₂O3(s)-822.30.65100.900Al(s)Al2O3(s)-1669.80.753a) Calculate the heat released by this process.b) Assuming the reaction goes to completion and that all the heat goesinto the final mixture, calculate the final temperature of the productsbefore heat has flowed into the surroundings. Comment on whether thecalculated temperature is reasonable.c) Calculate the entropy change for the surroundings once the systemand surroundings have equilibrated to the surrounding temperature of25 °C.

Answered: Image /qna-images/answer/c941145a-13fb-48b2-bbc3-e83b7e7e04d4.jpg

Train track rails are joined using an exothermic welding process. A mixture of iron (III) oxide (Fe₂O3), and aluminium metal (Al) is employed and the process is described by the following chemical reaction: Fe₂O3(s) + 2Al(s) →→→ Al₂O3(s) + 2Fe(s) AfH (kJ mol-1) c(g-¹ K-¹) 0 0.451 Fe(s) Fe₂O3(s) -822.3 0.651 Al(s) 0 0.900 Al₂O3(s) -1669.8 0.753 Calculate the heat released by this process.

Train track rails are joined using an exothermic welding process. A mixture of iron (III) oxide (Fe₂O3), and aluminium metal (Al) is employed and the process is described by the following chemical reaction: Fe₂O3(s) + 2Al(s) →→→ Al₂O3(s) + 2Fe(s) AfH (kJ mol-1) c(g-¹ K-¹) 0 0.451 Fe(s) Fe₂O3(s) -822.3 0.651 Al(s) 0 0.900 Al₂O3(s) -1669.8 0.753 Calculate the heat released by this process.

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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