Problem: Assume that the following reaction occurs at constant pressure:2 Al(s) + 3 Cl2(g) → 2 AlCl3(s)(a) If you are given ΔH for the reaction, what additional information do you need to determine ΔE for the process?(b) Which quantity is larger for this reaction? 

FREE Expert Solution

Internal Energy:


E=q+w


Recall that work (w) is given by:


w=-PΔV


At constant P → q = ΔH (enthalpy)

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Problem Details

Assume that the following reaction occurs at constant pressure:
2 Al(s) + 3 Cl2(g) → 2 AlCl3(s)

(a) If you are given ΔH for the reaction, what additional information do you need to determine ΔE for the process?

(b) Which quantity is larger for this reaction? 

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