CHEM 1002 Chapter Notes - Chapter 12: Spontaneous Process
15 Aug 2015
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Document Summary
Recognize driving force behind all chemical change: dispersal of energy and matter. Processes that are spontaneous in one direction are non-spontaneous in opposite direction. Energy in the from of heat always flows from warmer object to colder object. Spontaneity of any process must be evaluated in terms of dispersal of both energy and matter. Spontaneity preferred direction of reaction = spontaneous direction can be spontaneous and still not occur process that does not occur = non spontaneous. Dispersal of matter things tend to become dispersed. Energy dispersal processes without obvious dispersal of matter can still have preferred directions: when two objects at different temperatures contact, object with higher temp transfers energy to other object. Energy and spontaneity spontaneous processes result in dispersal of matter and energy energy and enthalpy changes not enough to predict whether a process is spontaneous or not need another property.
