CHEM 281 Lecture Notes - Lecture 1: Thermodynamics, Dinitrogen Tetroxide, Mole Fraction
22 Jan 2015
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Document Summary
Energy is defined as the ability to do work, and work is defined as the displacement of an object against and opposing force. Kinetic energy is the energy of moving objects. Thermal energy is the energy content of hot object. Radiant energy is the energy content of electromagnetic radiation such as light or infrared. Gravitational energy potential energy due to location (gravity) most familiar. Other types of potential energy include electrical, chemical, and mass. Matter is electrical by its very nature. Opposite charges attract each other energy released when opposites move close. Electrons and nuclei repel and leads to electrical potential energy. Q1 and q2 are electrical potential energy of two charges. R is distance that separates two charges. K is constant in picometers (1 pm = 10^-12 m) Electrons and nuclei organize themselves in a way that minimizes electrical potential energy. Form of energy is known as chemical energy or bond energy.
