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ENERGETICS -
the full THERMOCHEMISTRY and THERMODYNAMICS REVISION NOTES INDEX[Author
©
Dr
Phil Brown PhD: Doc
Brown's exam revision notes suitable
for students of advanced pre-university level theoretical-physical chemistry courses:
Energetics-Thermochemistry-
Thermodynamics: INDEX
[updated Mar 19th 2026 *]
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brown - comments - query?
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ALL my advanced
pre-university/college
level theoretical
chemistry revision study notes
GCSE Level
(~US grades 9-10) introduction to basic thermochemistry and calculations
Part 0 for GCSE-IGCSE level students
(but a useful introduction for advanced level students including
calorimetry)
Energetics - introduction to energy changes
(4 linked GCSE/IGCSE/O level pages listed
below including practical
calorimetry methods)
Reversible reactions and energy changes
Activation energy and reaction profiles
Introduction to bond energy/enthalpy calculations
Calorimetry methods and energy transfer calculations from calorimeter results
Parts 1 to 3 are only for Advanced A Level
Students
PLEASE note that delta H/S/G values vary
slightly from source to source, so I apologise in advance for any
inconsistencies that may have arisen as I've researched and developed each section.
 Part 1. Basic
thermochemistry, calorimetry and enthalpy changes
1.1
Advanced
Introduction to enthalpy changes – defining enthalpies of reaction, of
formation, of neutralisation, of combustion, bond enthalpy and
thermochemistry-thermodynamics standard conditions
1.2a-1.2b(i)-(iii)
Thermochemistry: Hess's Law calculations
using various enthalpy values of reaction
 1.2b(iv)
Bond Enthalpy Calculations
1.3a–b
Experimental methods
for determining enthalpy changes and treatment of results for 9
investigations
1.4a-b
Enthalpy data patterns - combustion of alkanes linear
aliphatic alcohols, bond
enthalpies and bond Length
1.4c-d
Trend in enthalpies of
neutralisation, enthalpies of
hydrogenation and evidence of aromatic
ring structure in benzene
Extra Question page
A set of practice enthalpy
calculations with worked out answers
Part 2. Extension of defined
enthalpies leading to a full exposition of BORN-HABER CYCLE calculations and
use of the cycle to derive thermochemical data for reactions which are difficult
or impossible to achieve experimentally
2.1a-c
Introducing enthalpies of
ion hydration, solution, atomisation, lattice energy, electron affinity,
solvation
2.1d–e
Enthalpy Hess's Law
cycles involving a salt dissolving
2.2a–d
The
Born–Haber Cycle calculations, uses, comparing theoretical/experimental
lattice enthalpies
 Part 3.
Introducing entropy, feasibility of reactions, entropy and free energy
calculations,
all about
ΔS
and ΔG = ΔH - TΔS
3.1a–g
Introduction to Entropy :
3.2-3.3a
Examples of
entropy values, comments, ΔS and change of physical state
3.3b-c
ΔS, Entropy changes and the
feasibility of a chemical change
 3.4a–n
Feasibility of chemical change, ΔG, free energy change
equation, calculations and
applications
3.5-3.6
Calculating equilibrium
constants from ΔG equation, kinetic stability - thermodynamic
feasibility
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notes on thermochemistry-thermodynamics, these A level chemistry revision notes are suitable for use of pre-university students studying AQA
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