The value of ΔS° for the decomposition of gaseous sulfur dioxide to solid elemental sulfur and gaseous oxygen,
SO₂(g) → S (s,rhombic) + O₂(g)
Is ________ J/K ∙ mol.

Question

The value of ΔS° for the decomposition of gaseous sulfur dioxide to solid elemental sulfur and gaseous oxygen, SO₂(g)→ S (s,rhombic)+ O₂(g) Is ________ J/K ∙ mol.

Quizplus · Accepted Answer

The decomposition of sulfur dioxide into solid sulfur and gaseous oxygen involves the formation of a solid from a gas, which decreases the disorder of the system, indicating a negative ΔS°. Among the given options, -11.6 J/K∙mol is the only negative value that reflects a decrease in entropy.

The Value of ΔS° for the Decomposition of Gaseous Sulfur