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Sulfur dioxide reacts with oxygen to produce sulfur trioxide. Thermodynamic Data Substance ΔfH∘ (kJ mol−1) ΔfG∘ (kJ mol−1) S∘ (J mol−1 K−1) Sulfur dioxide −296.8 −300.2 248.2 Oxygen 0 0 205.1 Sulfur trioxide −395.7 −371.1 256.8   Calculate the enthalpy change of the reaction. Calculate the entropy change of the reaction. Calculate the free energy change of the reaction at 230.0 ∘C.

Sulfur dioxide reacts with oxygen to produce sulfur trioxide. Thermodynamic Data Substance ΔfH∘ (kJ mol−1) ΔfG∘ (kJ mol−1) S∘ (J mol−1 K−1) Sulfur dioxide −296.8 −300.2 248.2 Oxygen 0 0 205.1 Sulfur trioxide −395.7 −371.1 256.8   Calculate the enthalpy change of the reaction. Calculate the entropy change of the reaction. Calculate the free energy change of the reaction at 230.0 ∘C.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter16: Thermodynamics: Directionality Of Chemical Reactions
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Sulfur dioxide reacts with oxygen to produce sulfur trioxide.

Thermodynamic Data

Substance

ΔfH∘ (kJ mol−1)

ΔfG∘ (kJ mol−1)

S∘ (J mol−1 K−1)

Sulfur dioxide

−296.8

−300.2

248.2

Oxygen

0

0

205.1

Sulfur trioxide

−395.7

−371.1

256.8

 

  1. Calculate the enthalpy change of the reaction.
  2. Calculate the entropy change of the reaction.
  3. Calculate the free energy change of the reaction at 230.0 ∘C.
  4. Calculate the equilibrium constant of the reaction at 230.0 ∘C.
  5. Calculate the equilibrium constant of the reaction at 500.0 ∘C.
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Calculate the equilibrium constant of the reaction at 230.0 ∘C.
  • Calculate the equilibrium constant of the reaction at 500.0 ∘C. 
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