Page 295 - SUBSEC October 2017_Neat

UNIT 1
MODULE 2: KINETICS AND EQUILIBRIA (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Redox Equilibria cont’d

Students should be able to:

6.5. use standard electrode Include cell diagram or
potentials of cells: notation of the type Zn(s)|
2+
Zn (aq)|| Cu 2+ (aq)|Cu(s).
(a) to determine the
direction of electron
flow; and,

(b) to determine the
feasibility of a
reaction;

6.6. predict how the value of an No treatment of the Nernst
electrode potential varies equation is required. Apply
with concentration; and, Le Chatelier’s Principle.

6.7. apply the principles of Include references to two of
redox processes to energy the following batteries:
storage devices. Leclanche’ dry cell, lead acid
accumulators (secondary

cells); and fuel cells.

Suggested Teaching and Learning Activities

To facilitate students’ attainment of the objectives of this Module, teachers are advised to engage
students in the teaching and learning activities listed below.

1. Use appropriate analogies, for example, a moving object on an escalator in motion to
distinguish between static and dynamic equilibria so that students get a better understanding
of the changes at the microscopic level as opposed to the apparent lack of change at the
macroscopic level.

2. Identify suitable practical activities to enhance the theory. It is important that students are
conversant with the manipulation of experimental data. In this respect, students should be
given the opportunity to develop the various concepts in a stepwise manner. For example, in
the determination of rate constant the following sequence of steps can be used:

CXC A11/U2/17 26