CHEM103 Lecture Notes - Lecture 8: Sodium Bicarbonate, Ammonium Nitrate, Joule
27 Mar 2018
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Document Summary
Law of conservation of energy: the total energy of the universe is constant. Forms of energy are interconvertible, but energy is neither created nor destroyed. Temperature (t): a measure of an object"s ability to transfer energy as heat. Heat (q) : thermal energy, caused by the motion of molecules. For a reaction to be fully balanced: Electrons must be conserved (conservation of mass and charge; example: redox) Thermodynamics is the area of chemistry that concerns all three of these. All types of energy (heat, kinetic, potential, etc. ) described with same units. Heat energy may be transformed into other forms of energy (e. g. , work). Heat (thermal energy) is spontaneously transferred whenever two objects at different temperatures are in contact. Direction: heat always flows from hotter object to cooler object. Equilibrium: heat transfer continues until both objects are at the same t and thermal.
