Online Videos –
Chemical Energetics
These videos of our regular classes are available to our regular class students.
Each lesson is broken up into a few videos. In the description below each video, you can look for the content or question that you would like to view or revisit.
05 Chemical Energetics (Week 1)
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Video 1-1
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Introduction to enthalpy and enthalpy changes
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Exothermic and endothermic processes
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Standard conditions
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Q1
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Video 1-2
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Standard enthalpy change of REACTION (Q2)
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Video 1-3
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Standard enthalpy change of FORMATION (Q3)
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Standard enthalpy change of COMBUSTION (Q4)
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Video 1-4
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Hess' Law and energy cycles
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Energy cycles with enthalpy change of combustion (Q5)
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Energy cycles with enthalpy change of formation (Q6)
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Shortcut equations using enthalpy changes of combustion and formation
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Video 1-5
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Q7, Q8: energy cycles and shortcut equations
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Video 1-6
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Standard enthalpy change of NEUTRALISATION (Q17)
05 Chemical Energetics (Week 2)
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Video 2-1
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Experimental determination of enthalpy changes
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Video 2-2
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Q18: enthalpy change of reaction
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Q19: enthalpy change of combustion
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Video 2-3
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Q20: enthalpy change of neutralisation
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Q22: enthalpy change of neutralisation (cooling graph)
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Video 2-4
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Bond dissociation energy (B.D.E.)
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Bond energy (B.E.)
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Q27: calculating enthalpy change of reaction from bond energies
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Video 2-5
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Q28: bond energies
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Video 2-6
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Standard enthalpy change of ATOMISATION (Q29)
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Video 2-7
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Q31, Q33: energy cycles, bond energies
05 Chemical Energetics (Week 3)
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Video 3-1
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Ionisation energy, electron affinity, and lattice energy
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Video 3-4
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Q46, Q47: drawing other energy level diagrams
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Video 3-2
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Drawing Born-Haber cycles (Q36)
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Video 3-3
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Q38, Q40: Born-Haber cycles
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Video 3-5
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Dissolution processes: standard enthalpy change of hydration, and standard enthalpy change of solution
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Q48, Q50: dissolution processes
05 Chemical Energetics (Week 4)
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Video 4-1
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Entropy
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Entropy change for a few common processes
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Q52: determining sign of entropy changes
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Video 4-4
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Q57: bond energy method, and spontaneity of reaction
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Video 4-2
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Gibbs free energy and spontaneity of reactions
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Temperature effects on spontaneity of reactions
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Q53
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Video 4-3
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Q54: Gibbs free energy change during phase changes
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Q56: energy cycle, entropy change, and spontaneity of reaction
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Video 4-5
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Q59: experimental determination of enthalpy change, and spontaneity of reaction
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Q60, Q61: MCQ questions on signs of enthalpy, entropy, and Gibbs free energy changes