Page 287 - SUBSEC October 2017_Neat

UNIT 1
MODULE 1: FUNDAMENTALS IN CHEMISTRY (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED
PRACTICAL ACTIVITIES

Energetics cont’d

Students should be able to:

6.4. 11.10 explain the term ‘bond Calculations involving bond
energy’; energy data.

6.5. 11.11 explain how bond energy Lack of reactivity of
data may be used to show nitrogen. Consider factors
the relationship between which affect bond energy.
strength of covalent bonds
and reactivity of covalent
molecules;

6.6. 11.12 apply concepts associated Include enthalpy change of
with enthalpy changes; formation, combustion,
neutralisation, reaction,
hydration, solution,
atomisation, ionisation
energy, electron affinity and
lattice energy.

6.7. 11.13 explain the effect of ionic No calculation needed.
charge and radius on the
magnitude of lattice
energy;

6.8. 11.14 state Hess’ law of constant Use standard conditions.
heat summation; and,

6.9. 11.15 calculate enthalpy changes This will require Experiments may include
from appropriate construction of energy heats of reaction, solution
experimental data. cycles including Born Haber and neutralisation.
cycles. Data may be
obtained experimentally or
provided.

CXC A11/U2/17 18