Lec-10-Chap13-2-bare 9/23/2011 Directionality of Chemical Reactions Gibbs free energy. Calculations 1 Lec-10: Thermodynamics: Directionality of Chemical Reactions. Gibbs Free Energy Chapter 13 1 Wednesday, September 28,(in the first half of the lecture) Discussion about the course with Professor Troy Wolfskill Professor Fernando Raineri For a process at constant pressure 21extconstantpTTPSCdTTPThis equation allows us to calculate entropy changes (at constant pressure) by making calorimetric measurements. 2 initialinitiafinalfillnaSSSSSSFrom the definition of ∆S it follows that or, more explicitly infinalitialinitialinitfinalllafinaiTTSTTTTCdTS
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