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)
2020-J1A-11 Chemical Energetics (1-1).jp
Video 1-1
  • Introduction to enthalpy and enthalpy changes

  • Exothermic and endothermic processes

  • Standard conditions

  • Q1

2020-J1A-11 Chemical Energetics (1-2).jp
Video 1-2
  • Standard enthalpy change of REACTION (Q2)

2020-J1A-11 Chemical Energetics (1-3).jp
Video 1-3
  • Standard enthalpy change of FORMATION (Q3)

  • Standard enthalpy change of COMBUSTION (Q4)

2020-J1A-11 Chemical Energetics (1-4).jp
Video 1-4
  • Hess' Law and energy cycles

  • Energy cycles with enthalpy change of combustion (Q5)

  • Energy cycles with enthalpy change of formation (Q6)

  • Shortcut equations using enthalpy changes of combustion and formation

2020-J1A-11 Chemical Energetics (1-5).jp
Video 1-5
  • Q7, Q8: energy cycles and shortcut equations

2020-J1A-11 Chemical Energetics (1-6).jp
Video 1-6
  • Standard enthalpy change of NEUTRALISATION (Q17)

05  Chemical Energetics (Week 2)
2020-J1A-11 Chemical Energetics (2-1).jp
Video 2-1
  • Experimental determination of enthalpy changes

2020-J1A-11 Chemical Energetics (2-2).jp
Video 2-2
  • Q18: enthalpy change of reaction

  • Q19: enthalpy change of combustion

2020-J1A-11 Chemical Energetics (2-3).jp
Video 2-3
  • Q20: enthalpy change of neutralisation

  • Q22: enthalpy change of neutralisation (cooling graph)

2020-J1A-11 Chemical Energetics (2-4).jp
Video 2-4
  • Bond dissociation energy (B.D.E.)

  • Bond energy (B.E.)

  • Q27: calculating enthalpy change of reaction from bond energies

2020-J1A-11 Chemical Energetics (2-5).jp
Video 2-5
  • Q28: bond energies

2020-J1A-11 Chemical Energetics (2-6).jp
Video 2-6
  • Standard enthalpy change of ATOMISATION (Q29)

2020-J1A-11 Chemical Energetics (2-7).jp
Video 2-7
  • Q31, Q33: energy cycles, bond energies

05  Chemical Energetics (Week 3)
2020-J1A-11 Chemical Energetics (3-1).jp
Video 3-1
  • Ionisation energy, electron affinity, and lattice energy

2020-J1A-11 Chemical Energetics (3-4).jp
Video 3-4
  • Q46, Q47: drawing other energy level diagrams

2020-J1A-11 Chemical Energetics (3-2).jp
Video 3-2
  • Drawing Born-Haber cycles (Q36)

2020-J1A-11 Chemical Energetics (3-3).jp
Video 3-3
  • Q38, Q40: Born-Haber cycles

2020-J1A-11 Chemical Energetics (3-5).jp
Video 3-5
  • Dissolution processes: standard enthalpy change of hydration, and standard enthalpy change of solution

  • Q48, Q50: dissolution processes

05  Chemical Energetics (Week 4)
2020-J1A-11 Chemical Energetics (4-1).jp
Video 4-1
  • Entropy

  • Entropy change for a few common processes

  • Q52: determining sign of entropy changes

2020-J1A-11 Chemical Energetics (4-4).jp
Video 4-4
  • Q57: bond energy method, and spontaneity of reaction

2020-J1A-11 Chemical Energetics (4-2).jp
Video 4-2
  • Gibbs free energy and spontaneity of reactions

  • Temperature effects on spontaneity of reactions

  • Q53

2020-J1A-11 Chemical Energetics (4-3).jp
Video 4-3
  • Q54: Gibbs free energy change during phase changes

  • Q56: energy cycle, entropy change, and spontaneity of reaction

2020-J1A-11 Chemical Energetics (4-5).jp
Video 4-5
  • Q59: experimental determination of enthalpy change, and spontaneity of reaction

  • Q60, Q61: MCQ questions on signs of enthalpy, entropy, and Gibbs free energy changes