Answers: 2
![\Delta S=\sum [n\times S^0(product)]-\sum [n\times \Delta S^0(reactant)]](/tpl/images/0286/6168/a3291.png)
![\Delta S=[(n_{AlCl_3}\times S_{AlCl_3})]-[(n_{Cl_2}\times S_{Cl_2})+[(n_{Al}\times S_{Al})]](/tpl/images/0286/6168/3ce6d.png)
![\Delta S=[(2\times 111)]-[(3\times 223)+(2\times 28)]](/tpl/images/0286/6168/a86a0.png)
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