CHEM 1202 Chapter : Chapter 19 Exam Review Notes
Document Summary
Chapter 19 chemical thermodynamics: spontaneous processes, a spontaneous process occurs naturally by itself without any intervention. It is irreversible meaning that the process never goes backwards in the opposite direction: example of a ball being dropped on the floor bounces and comes to rest eventually, therefore it is spontaneous. Irreversible processes: all spontaneous processes occur irreversibly. The process will never spontaneously go in the reverse direction. Links entropy to the number of possible ways the system can be arranged (w). Increase order l s g s g l: entropy changes for the surroundings. Ssys<0: a process we are considering in the system affects order in the surroundings by the exchange of heat, heat flow determines ssurr, for an exothermic process heat exits the system and enters the surroundings. Heat entering the surroundings increases the temperature of the surroundings causing an increase in disorder.
