CHEM237 Lecture 3: CHEM237-3-Ch1-3-Thermodynamics-annot.PDF
10 May 2016
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H is the amount of heat transferred by a process or chemical reaction at constant pressure. The measure of energy dispersal of a system energy well dispersed high entropy energy concentrated low entropy. The improbability of even a small amount of. A process for which suniverse > 0 is spontaneous. Concept of gibbs free energy: j. willard gibbs, 1878. Spontaneity can be determined from properties of the system. Hence s > 0 will cause a more negative g. S < 0 will cause a more positive g. Overall, g depends on the relative magnitudes of h and t s. The magnitude of s and h and the temperature all contribute to the value of g. Table 3-2 with the signs of h and s. The enthalpy and entropy of the initial and final states of a reacting system are shown in the table.
