You have been asked to calculate the enthalpy change in the following reaction: 2Al(s) + Fe2O3(s)...

 

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You have been asked to calculate the enthalpy change in the following reaction: 2Al(s) + Fe2O3(s)→ Al2O3(s) + 2Fe(s) The reaction occurs in the following stages: 1. 2Al(s) + Fe2O3(s)→ Al2O3(s) + 2Fe(1) 2. Al2O3(s) + 2Fe(1)→ Al2O3(s) + 2Fe(s) 3. Al2O3(s) + 2Fe(1)→ Al2O3(s) + 2Fe(s) AH = -732.5kJ mol-1 AH = -27.6kJ mol-¹ AH = -91kJ mol-1 Note stages 2 and 3 look the same, but the reaction is cooling from 1700°C to 25°C and hence the enthalpy change there. Calculate the overall enthalpy change for the reaction. You must show your workings within your submission, and explain your reasoning. Your explanation should be a maximum of 300 words. You have been asked to calculate the enthalpy change in the following reaction: 2Al(s) + Fe2O3(s)→ Al2O3(s) + 2Fe(s) The reaction occurs in the following stages: 1. 2Al(s) + Fe2O3(s)→ Al2O3(s) + 2Fe(1) 2. Al2O3(s) + 2Fe(1)→ Al2O3(s) + 2Fe(s) 3. Al2O3(s) + 2Fe(1)→ Al2O3(s) + 2Fe(s) AH = -732.5kJ mol-1 AH = -27.6kJ mol-¹ AH = -91kJ mol-1 Note stages 2 and 3 look the same, but the reaction is cooling from 1700°C to 25°C and hence the enthalpy change there. Calculate the overall enthalpy change for the reaction. You must show your workings within your submission, and explain your reasoning. Your explanation should be a maximum of 300 words.

Answer rating: 100% (QA)

Here is my working for the overall enthalpy change Stage 1 2AlsFe2O3s Al2O3s2Fel H 7325 kJmol ... View the full answer