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Pearson Edexcel IAL Chemistry

Unit 4: Rates, Equilibria and Further Organic Chemistry

Topic 11: Kinetics

Topic 12: Entropy and Energetics

Topic 13: Chemical Equilibria

13.1—Deduce an expression for Kc , for homogeneous and heterogeneous systems, in terms of equilibrium concentrations

13.2—Deduce an expression for Kp for homogeneous and heterogeneous systems, in terms of equilibrium partial pressures in atm

13.3—A value, with units where appropriate, for the equilibrium constants (Kc and Kp) for homogeneous and heterogeneous

13.4—How, if at all, a change in temperature, pressure or the presence of a catalyst affects the equilibrium composition in

13.5—The value of the equilibrium constant is not affected by changes in concentration or pressure or by the addition of

13.6—The effect of changing the temperature on the equilibrium constant (Kc and Kp) for both exothermic and endothermic reactions

13.7—The effect of temperature on the position of equilibrium is explained using a change in the value of the equilibrium

13.8—The effect of a change in temperature on: i the value of ∆Stotal ii the magnitude of the equilibrium constant, since ∆Stotal

13.9—Apply knowledge of the value of equilibrium constants to predict the extent to which a reaction takes place

Topic 14: Acid-base Equilibria

Topic 15: Organic Chemistry: Carbonyls, Carboxylic Acids and Chirality

Unit 5: Transition Metals and Organic Nitrogen Chemistry

Unit 6: Practical Skills in Chemistry II

Assessed mathematical skills and measurement conventions

A-Level/Edexcel/Chemistry//A2/Concept/Unit 4: Rates, Equilibria and Further Organic Chemistry/Topic 13: Chemical Equilibria/13.7—The effect of temperature on the position of equilibrium is explained using a change in the value of the equilibrium

Unit 4: Rates, Equilibria and Further Organic Chemistry A2

Syllabus: 2017
Section: —
Level: A2

Exam analysis

Most tested topics

Topic 11: Kinetics
Topic 12: Entropy and Energetics
Topic 13: Chemical Equilibria
Topic 14: Acid-base Equilibria
Topic 15: Organic Chemistry: Carbonyls, Carboxylic Acids and Chirality