The value of ΔS° for the reaction 2C (s,diamond) + O₂ (g) → 2CO (g)
Is ________ J/K ∙ mol.

Question

The value of ΔS° for the reaction 2C (s,diamond)+ O₂ (g)→ 2CO (g) Is ________ J/K ∙ mol.

Quizplus · Accepted Answer

The value of ΔS° for a reaction can be found by subtracting the sum of the standard molar entropies (S°) of the reactants from the sum of the S° of the products. Given that the products are gases and the reactants are a solid and a gas, the disorder increases as the reaction proceeds, indicating a positive ΔS°. The correct value, +185.9 J/K∙mol, reflects this increase in disorder.

The Value of ΔS° for the Reaction 2C (S,diamond)+ O2

The Value of ΔS° for the Reaction 2C (S,diamond)+ O₂