Thermochemistry — three ways to learn it.

The complete written lesson — system & surroundings, internal energy & enthalpy, exo/endothermic reactions, enthalpy diagrams, standard enthalpy changes, Hess's law, calorimetry, bond energies and the first law.

As you scroll, a live D3 panel animates every idea: heat crossing the system boundary, exo/endo thermometers, enthalpy diagrams, the Hess's-law cycle, bond breaking/making, and an interactive calorimetry simulator where you set the mass & ΔT and read the heat q.

Run calorimetry experiments on a safe, virtual bench. All of the course's hands-on experiments live here, organised by chapter.