Chemistry 30

• Consider the implications for a system when the rates of the forward and the reverse reactions that define the system are equal.

• Distinguish between dynamic equilibria and steady-state processes.

• Discuss the influence of free energy on the spontaneity of reactions.

• Use Le Châtelier's principle to predict how various equilibrium systems will shift in response to external stress.

Understand some quantitative aspects of equilibrium systems.

• Analyze graphs of the concentrations of reactants and products with respect to time in a chemical reaction which is approaching equilibrium.

• Interpret K_eq values to determine whether products or reactants are favoured once equilibrium has been reached.

• Solve problems involving the equilibrium constant expression for a chemical reaction, with concentrations expressed in mol×litre^-1 and kPa.

• Discuss the relationships between the activities and analogies used to illustrate equilibrium and the principles of equilibria.

• Ask pertinent questions (prior questions, contextual questions, evaluative questions) and discuss multiple responses to those questions.

Strengthen knowledge and understanding of how to compute, measure, estimate and interpret mathematical data, when to apply these skills and techniques, and why these processes apply within chemistry. (NUM)

• Verify answers by referring to problem parameters, checking the validity of each step of the method of solution, looking for errors in reasoning and in information and searching for alternative methods of solution.

• Use problem solving tools such as tables and calculators.

Develop a contemporary view of technology. (TL)