The following thermodynamic data are available for CS2(l) and
CS2(g) at 298 K.
- Carbon Disulfide Cs2 Is A Toxic Highly Flammable Substance The Following Thermodynamic Data Are Available For Cs2 L 1 (21.46 KiB) Viewed 99 times
SO21g2. Write a balanced equation for this reaction.
(d) Using the data in the preceding table and in Appendix C,
calculate ∆H° and ∆G° for the reaction in part (c). Is the reaction
exothermic? Is it spontaneous at 298 K?
(e) Use the data in the table to calculate ∆S° at 298 K for the
vaporization of CS21l2. Is the sign of ∆S° as you would expect for
a vaporization?
(f) Using data in the table and your answer to part (e),
estimate the boiling point of CS21l2. Do you predict that the
substance will be a liquid or a gas at 298 K and 1 atm?
AHf*(kJ/mol) AG*r(kJ/mol) CS2(1) 89.7 65.3 CS2(g) 117.4 67.2 CO2(g) -393.5 -394.4 S* = 213.6 = SO2(g) -296.8 -300.2 S* = 248.1 =