Difluoroacetylene (C2F2) gas has a ΔHf° = 241.2 kJ/mole and a a ΔGf° = 191.2 kJ/mole. Hexafluorobenzene (C6F6) gas has a ΔHf° = 132.8 kJ/mole and a a ΔGf° = 78.2 kJ/mole. For the following reaction: C6F6(g) ⇌ 3C2F2(g) Calculate: a) The ΔS for the reaction at 25 °C b) The equilibrium constant K at 25 °C c) The equilibrium constant K at 2700 °C (assuming there is no temperature dependance on ΔH and ΔS)
Difluoroacetylene (C2F2) gas has a ΔHf° = 241.2 kJ/mole and a a ΔGf° = 191.2 kJ/mole. Hexafluorobenzene (C6F6) gas has a ΔHf° = 132.8 kJ/mole and a a ΔGf° = 78.2 kJ/mole. For the following reaction: C6F6(g) ⇌ 3C2F2(g) Calculate: a) The ΔS for the reaction at 25 °C b) The equilibrium constant K at 25 °C c) The equilibrium constant K at 2700 °C (assuming there is no temperature dependance on ΔH and ΔS)
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.47QE
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Difluoroacetylene (C2F2) gas has a ΔHf° = 241.2 kJ/mole and a a ΔGf° = 191.2 kJ/mole. Hexafluorobenzene
(C6F6) gas has a ΔHf° = 132.8 kJ/mole and a a ΔGf° = 78.2 kJ/mole. For the following reaction:
C6F6(g) ⇌ 3C2F2(g)
Calculate:
a) The ΔS for the reaction at 25 °C
b) The equilibrium constant K at 25 °C
c) The equilibrium constant K at 2700 °C (assuming there is no temperature dependance on ΔH and ΔS)
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