The value of ΔS° for the oxidation of carbon to carbon dioxide,
C (s,graphite) + O₂ (g) → CO₂(g)
Is ________ J/K ∙ mol.The combustion of carbon,as in charcoal briquettes,in the presence of abundant oxygen produces carbon dioxide.

Question

Quizplus · Accepted Answer

The reaction involves the conversion of one mole of solid carbon and one mole of gaseous oxygen into one mole of gaseous carbon dioxide. The entropy change (ΔS°) is small and positive because the number of gas molecules decreases, but the disorder slightly increases due to the formation of CO₂ gas from solid carbon.

The Value of ΔS° for the Oxidation of Carbon to Carbon