Liquid carbon disulfide burns in the presence of oxygen to produce two gaseous combustion products, carbon dioxide and sulfur dioxide. Species DHf° (kJ/mol) DGf° (kJ/mol) CS2 (g) 117.4 65.3 CS2 (l) 89.7 65.3 O2 (g) 0.00 0.00 CO2 (g) - 393.5 - 394.4 SO2 (g) - 296.9 - 300.4 Write a balanced equation for this reaction. 2. Calculate the values of ΔH°rxn and ΔG°rxn for this reaction 3. Is this reaction exothermic or endothermic? Liquid carbon disulfide is vapourised to gaseous carbon disulfide. Calculate the value of ΔS°vap for of liquid carbon disulfide at 25°

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Chapter18: Thermodynamics And Equilibrium
Section: Chapter Questions
Problem 18.109QP: Silver carbonate, Ag2CO3, is a light yellow compound that decomposes when heated to give silver...
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  1. Liquid carbon disulfide burns in the presence of oxygen to produce two gaseous combustion products, carbon dioxide and sulfur dioxide.

Species

DHf°

(kJ/mol)

DGf°

(kJ/mol)

CS2 (g)

117.4

65.3

CS2 (l)

89.7

65.3

O2 (g)

0.00

0.00

CO2 (g)

- 393.5

- 394.4

SO2 (g)

- 296.9

- 300.4

 

  1. Write a balanced equation for this reaction.

2.       Calculate the values of ΔH°rxn and ΔG°rxn for this reaction

3.       Is this reaction exothermic or endothermic?

  1. Liquid carbon disulfide is vapourised to gaseous carbon disulfide.
  2. Calculate the value of ΔS°vap for of liquid carbon disulfide at 25°
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