Carbon disulfide (CS2) is a toxic, highly flammable substance. The following

Chapter 19, Problem 19.104

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Carbon disulfide (CS2) is a toxic, highly flammable substance. The following thermodynamic data are available for CS2(1) and CS2(g) at 298 K: CS2(I) CS2(g) li.HJ (kJ/mol) 89.7 117.4 li.GJ (kJ/mol) 65.3 67.2 (a) Draw the Lewis structure of the molecule. What do you predict for the bond order of the c-s bonds? (b) Use the VSEPR method to predict the structure of the C molecule. (c) Liquid CS2 burns in 02 with a blue flame, forming C02(g) and S02(g). Write a balanced equation for this reaction. (d) Using the data in the preceding table and in Appendix C, calculate aH and ac for the reaction in part (c). Is the reaction exothermic? Is it spontaneous at 298 K? (e) Use the data in the preceding table to calculate as at 298 K for the vaporization of C(l). Is the sign of as as you would expect for a vaporization? (f) Using data in the preceding table and your answer to part (e), estimate the boiling point of C(l). Do you predict that the substance will be a liquid or a gas at 298 K and 1 atm?