CHMA11H3 Chapter Notes - Chapter 6: Perpetual Motion, Heat Capacity, Thermal Energy

• School: UTSC
• Department: Chemistry
• Course: CHMA11H3
• Professor: Ruby Sullan

Document Summary

Thermochemistry is the study of the relationship between chemistry and energy. Chemical hand warmers warm up because of an exothermic reaction that occurs when they are exposed to air. Energy is the capacity to do work. Energy can be transferred through heat, represented by the letter q . Kinetic energy is associated with the motion of an object. Thermal energy is the energy associated with the temperature of an object. Potential energy is the energy associated with the the position or composition of. Chemical energy is associated with the relative positions of electrons and nuclei an object in atoms and molecules. The law of conservation of energy is that energy can"t be created or destroyed. Although we can"t create or destroy energy, energy can change forms, for example from kinetic to potential. To keep track of energy changes, it"s useful to define the system . The surroundings are everything that the system can exchange energy with.