Khan Academy
Heat of Formation, Thermodynamics, Chemistry
In this chemistry video, Sal takes a closer look at what happens to the change in enthalpy during a chemical reaction. He points out that, given constant pressure, the enthalpy change becomes the heat added to the system at that constant...
Khan Academy
Enthalpy, Thermodynamics, Chemistry
Sal introduces students to the term "enthalpy" in this chemistry video. He defines enthalpy as: the internal energy, plus the pressure times the volume found in a system. He constructs a PV diagram to illustrate this point.