Which of the following is correct statement about kc?
Correct answer: D. Both option A and C
- A. May or may not have a unit
- B. Depends upon equilibrium concentrations
- C. Thermodynamic property
- D. Both option A and C
Explanation
Kc is linked to Gibbs free energy change:ΔG∘=−RTlnK This means Kc depends only on temperature (for a given reaction).Since thermodynamic properties describe equilibrium behavior and depend on state variables (T, P), Kc qualifies as a thermodynamic constant.And Kc may or may not have an units
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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