FIN 3514 Study Guide - Midterm Guide: Thermal Equilibrium, Intensive And Extensive Properties, Exothermic Reaction
17 Feb 2017
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Section 6. 3 (6. 4): heat and heat capacity (quantifying heat and work) Heat is the exchange of thermal nrg b/w a system and its surroundings caused by a temperature difference: temperature is measure of thermal nrg; heat is transfer of thermal nrg. Thermal nrg always flows from matter at highest temp to matter at lower temps. Ie: hot coffee transfers thermal nrg as heat to lower temp surrounds to cool it down. Thermal equilibrium is the point at which there is no additional net transfer of heat b/w a system and its surroundings. Ie: the heat transfer from coffee to its surroundings stops when the two reach the same temperature. When a system absorbs heat (q) its temp changes by t: q is directly proportional to t: constant of heat proportionality b/w q and t is called heat capacity. (eat capacity is the measure of a system"s ability to absorb thermal nrg w/o experiencing a large change in temp.
