Tablas termodinamicas, Guías, Proyectos, Investigaciones de Termodinámica

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Appendix A SELECTED THERMODYNAMIC AND THERMOCHEMICAL DATA TABLE A-1: THE STANDARD GIBBS FREE ENERGY CHANGES FOR SEVERAL REACTIONS This table lists the standard Gibbs free energy changes for selected reactions in the form AG3=A + BT] or AG7=A+BTINT+CTJ and lists the range of temperature in which the expression is valid. Example—For the oxidation of solid copper to form solid cuprous oxide according to 2Cu4, + ZO = CULO. AG” = —162,200 + 69.24TJ in the range 298-1356 K. Thus, at the melting temperature of Cu, 1356 K, AG Tse x = —162,200 +69.24 X 1356 = —68,310 3 Table A-1 The standard Gibbs free energy changes for several reactions (standard states are noted by subscript) Reaction AG, joules Range, K 2Ag 120, 7A8,0 (5) —30,540+66.11 T 298-463 Al TAI la tt in Fo) -—43,100-32.26 T 2Al je 5077 ALOs, 5) —1,687,200+326.8 T 993-2327 E 6) y "1/20, yo e —111,700-87.65 T 298-2000 E 82000 Cc (592, y Oz) 394, 1000.84 T 29