Chemical energetics
Learning outcomes
Candidates should be able to:
1 define and use the terms:
(a) enthalpy change of atomisation, ΔHat
(b)lattice energy, ΔHlatt (the change from gas phase ions to solid lattice)
2 (a)define and use the term first electron affinity, EA
(b)explain the factors affecting the electron affinities of elements
(c)describe and explain the trends in the electron affinities of the Group 16 and Group 17 elements
3. construct and use Born–Haber cycles for ionic solids (limited to +1 and +2 cations, –1 and –2 anions)
4. carry out calculations involving Born–Haber cycles
5. explain, in qualitative terms, the effect of ionic charge and of ionic radius on the numerical magnitude of a lattice energy
0/14
Enthalpies of solution and hydration
0/1
Entropy change, ΔS
0/9
Gibbs free energy change, ΔG
0/3
Electrolysis
0/15
Standard electrode potentials E⦵; standard cell potentials E⦵cell and the Nernst equation
0/34
Acids and bases
0/17
Partition coefficients
0/1
Simple rate equations, orders of reaction and rate constants
0/7
Homogeneous and heterogeneous catalysts
0/5
Similarities and trends in the properties of the Group 2 metals, magnesium to barium, and their compounds
0/3
General physical and chemical properties of the first row of transition elements, titanium to copper
0/9
Colour of complexes
0/5
Stereoisomerism in transition element complexes
0/2
Formulae, functional groups and the naming of organic compounds
0/9
Characteristic organic reactions
0/13
Shapes of aromatic organic molecules; σ and π bonds
0/19
Isomerism: optical
0/14
Halogen compounds
0/5
Alcohols
0/3
Carboxylic acids and derivatives
0/6
Esters
0/4
Acyl chlorides
0/4
Primary and secondary amines
0/1
Phenylamine and azo compounds
0/2
Condensation polymerization
0/4
Thin-layer chromatography
0/1
Gas / liquid chromatography
0/1
Carbon-13 NMR spectroscopy
0/6
Proton (1H) NMR spectroscopy
0/9
A2 Chemistry Past Paper Session
0/1