Calculate S⁰ for O₃(g)if the standard entropy change for the reaction below is 548 J/K.mol-rxn and S⁰[O₂(g)] = 205 J/K.mol. 8O₃(g)$\to$ 12O₂(g) A) 364 J/K.mol-rxn B) 478 J/K.mol-rxn C) 239 J/K.mol-rxn D) (-117) J/K.mol-rxn E) (-59) J/K.mol-rxn

Question

Quizplus · Accepted Answer

The entropy change for the reaction is given by ΔS° = ΣS°(products) - ΣS°(reactants). For the reaction 8O₃(g) → 12O₂(g), ΔS° = 12S°(O₂) - 8S°(O₃). Given ΔS° = 548 J/K·mol and S°(O₂) = 205 J/K·mol, solve for S°(O₃): 548 = 12(205) - 8S°(O₃). Solving gives S°(O₃) = 239 J/K·mol.

Calculate S0 for O3(g)if the Standard Entropy Change for the Reaction

Calculate S⁰ for O₃(g)if the Standard Entropy Change for the Reaction