2 Al₂O₃(s)→ 4 Al(s)+ 3 O₂(g)ΔG = +138 kcal Consider the contribution of entropy to the spontaneity of this reaction.As written,the reaction is ________,and the entropy of the system ________.

Question

Quizplus · Accepted Answer

CThe reaction is non-spontaneous as indicated by the positive ΔG value of +138 kcal, which means it does not occur by itself under the given conditions. The entropy of the system increases because the reaction produces more moles of gas (3 moles of gas produced from solid reactants), which increases the disorder of the system.

2 Al2O3(s)→ 4 Al(s)+ 3 O2(g)ΔG = +138 Kcal

2 Al₂O₃(s)→ 4 Al(s)+ 3 O₂(g)ΔG = +138 Kcal