This page discusses chemical potential energy, heat, and thermochemistry, covering the history of gunpowder, energy transfer principles, and exothermic versus endothermic processes. Key concepts inclu...This page discusses chemical potential energy, heat, and thermochemistry, covering the history of gunpowder, energy transfer principles, and exothermic versus endothermic processes. Key concepts include heat capacity, specific heat calculations, heat of fusion, vaporization, combustion, calorimetry complexities, Hess's law, and environmental impacts of energy changes.