CHE 131 Lecture Notes - Lecture 17: Thermodynamics, Chemical Energy, Enthalpy

• School: Stony Brook University
• Department: Chemistry
• Course: CHE 131
• Professor: Benjamin Hsaio, Jiangyong Jia, Roy Lacey

Document Summary

Thermodynamics is the study of energy and its transformation. System: part of the universe we are interested in. The first law of thermodynamics states that the total amount of energy in the universe remains constant. Energy is stored in the bonds of chemical compounds. Energy consumed and produced in chemical reactions. Potential energy is the energy an object possesses by virtue of its position. Can be converted into other forms of energy. Can be converted from one form to another. Energy transferred between objects because of a difference in their temperatures. A push and pull on an object. Work is the product of force applied to an object over a distance. Kinetic energy is the energy of motion. When a system undergoes a physical or chemical change, the change in internal energy is given by the heat added to or absorbed by the system plus the work done on or by the system.