Calculate AG ° of the following reaction: 2 C (s) + H2 (g) → C2H2 (g) AG2 + Use Hess' Law, AG°= AG¡ + AG3 and the following information. C2H2 (g) + 5/2 O2 (g) С (s) + Оz (g) > СО2(g) На (g) + O2 (g) > Н0 (1) > 2 СО2(g) + H-0 () AG ° = -1234 kJ AG ° = -394 kJ AG ° = -237 kJ
Calculate AG ° of the following reaction: 2 C (s) + H2 (g) → C2H2 (g) AG2 + Use Hess' Law, AG°= AG¡ + AG3 and the following information. C2H2 (g) + 5/2 O2 (g) С (s) + Оz (g) > СО2(g) На (g) + O2 (g) > Н0 (1) > 2 СО2(g) + H-0 () AG ° = -1234 kJ AG ° = -394 kJ AG ° = -237 kJ
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
Chapter17: Chemcial Thermodynamics
Section: Chapter Questions
Problem 17.75QE
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![Calculate AG ° of the following reaction: 2 C (s) + H2 (g) → C2H2(g)
Use Hess' Law, AG°= AG1 +
AG2 + AG3 and the following information.
+ 5/2 02 (g)
C2H2 (g) +
С (s) + О2(g)
+ ½ O2 (g)
> 2 СО2(g) + H:0 (1)
CO2 (g)
> Н:0 (1)
ΔG
-1234 kJ
AG ° = -394 kJ
H2 (g)
AG ° = -237 kJ
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F11f65768-3637-42df-b106-adece588ddc5%2F6e60f2de-1fd8-4354-83bd-8bf8bdb86576%2Fqp8x76e_processed.png&w=3840&q=75)
Transcribed Image Text:Calculate AG ° of the following reaction: 2 C (s) + H2 (g) → C2H2(g)
Use Hess' Law, AG°= AG1 +
AG2 + AG3 and the following information.
+ 5/2 02 (g)
C2H2 (g) +
С (s) + О2(g)
+ ½ O2 (g)
> 2 СО2(g) + H:0 (1)
CO2 (g)
> Н:0 (1)
ΔG
-1234 kJ
AG ° = -394 kJ
H2 (g)
AG ° = -237 kJ
%3D
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I don't understand why the second formula was multiplied by 2 and why the delta G of the 1st formula was changed from negative to positive
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