Question

THALPY, ENTROPY, AND FREE ENERGY Carbon disulfide, CS2, is a toxic, highly flammable substance that is an excellent solvent for large, nonpolar, organic species such as fats, resins, rubbers, and asphalt. The following thermodynamic data are available for CS, (g) and CS, (1) at 298 K: CS2 (8) CS2 (D) 67.2 65.3 89.7 a) Liquid CS, burns in oxygen with a blue flame, forming CO,(8) and SO, (g). Write a balanced chemical equation for this reac tion. Calculate the ΔΗΡ and ΔG。for the combustion reaction at 208 K. Is the reaction exothermic or endothermic? Is it b) u to nrovide a table of NTHALPY, ENTROPY, AND FREE ENERGY Carbon disulfide, CS2, is a toxic, highly flammable substance that is an excellent solvent for large, nonpolar, organic species such as fats, resins, rubbers, and asphalt. The following thermodynamic data are available for CS, (8) and CS, (1) at 298 K: AH (kJ/mol) AG (kJ/mol) CS2 (g) CS2 (D) 67.2 65.3 89.7 a) Liquid CS, burns in oxygen with a blue flame, forming CO(g) and SO2 (g). Write a balanced chemical equation for this reac tion. b) Calculate the AHo and AGo for the combustion reaction at 298 K. Is the reaction exothermic or endothermic? Is it spontaneous? [this will require us to provide a table of thermodynamic data, or to refer to a table in the text] Calculate AS at 298 K for the vaporization of CS, (). c)

Answer 1

AMニー393, 5 + 2 x (-296.8)-84, g AGO., 1045-298M 65-3 ao 534.4 Kilma

004 298 CS CamScanner