版权所有：华东理工大学物理化学教研室 14 0-3 Energy The central concept of all explanations in physical chemistry is that of energy. Briefly, energy is the capacity to do work. There are two contributions to the total energy of a system from the matter it contains. The kinetic energy and the potential energy. 14 0. Basic concepts版权所有：华东理工大学物理化学教研室 14 0-3 Energy The central concept of all explanations in physical chemistry is that of energy. Briefly, energy is the capacity to do work. There are two contributions to the total energy of a system from the matter it contains. The kinetic energy and the potential energy. 14 0. Basic concepts