Energetics

Question 1

State the chemical reactions take place through energy changes
(usually in the form of heat) associated with the breaking and making of bonds

Question 2

State the energy changes that
occur in chemical reactions
associated with the making
and breaking of bonds;

Question 3

Explain the differences
between exothermic and
endothermic reactions
using energy profile
diagrams;

Question 4

explain the term ‘bond
energy’;

Question 5

Explain how bond energy
data may be used to show
the relationship between
strength of covalent bonds
and reactivity of covalent
molecules

Question 6

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

Question 7

Explain the effect of ionic
charge and radius on the
magnitude of lattice
energy;

Question 8

State Hess’s law of constant
heat summation; and, use standard conditions.