CHM 113 Lecture Notes - Enthalpy, Calorimetry, Chemical Energy
Document Summary
Energy: ability to do work or transfer heat. Law of conservation of energy (1st law of thermodynamics): energy cannot be created nor destroyed, but can be changed from one form to another or transferred from one place to another: types of energy: Kinetic energy (ke) energy of motion. Potential energy (pe) energy of composition of position. Electrostatic pe: interaction of charged particles eel=kq1q2/d. Heat (q): energy transfer (and increased particle motion) from a body of higher temperature to one of lower temperature when paced in thermal contact with one another: units of heat energy: Joule (j) si unit of energy (1j = 1kg m2/s2) Calorie (cal) common non-si unit (1cal = 4. 184 j) Calorie (cal) 1,000 cal (or 1 kcal) Q = csp * m * t. Energy changes: work (w): the movement of an object to get some force. Express the 1st law: e = q + w.
