Le Chatelier's principle discussed the effects of following on the equilibrium
Correct answer: C. Concentration, pressure, temperature
- A. Concentration work and heat
- B. Volume, heat, pressure
- C. Concentration, pressure, temperature
- D. None of these
Explanation
Concentration: Changing the concentration of reactants or products shifts the equilibrium to counteract the change.Pressure: Affects gaseous equilibria - increasing pressure shifts the equilibrium toward fewer moles of gas.Temperature: Changes alter the equilibrium constant K and shift the equilibrium toward endothermic or exothermic directions.This is the classic trio in Le Chatelier's Principle.
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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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