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Consider the reaction N2(g) + 3H2(g)----->2NH3(g) Using the standard thermodynamic data in the tables linked above, calculate Grxn for this reaction at 298.15K if the pressure of each gas is 38.65 mm Hg. ANSWER:  kJ/mol

Consider the reaction N2(g) + 3H2(g)----->2NH3(g) Using the standard thermodynamic data in the tables linked above, calculate Grxn for this reaction at 298.15K if the pressure of each gas is 38.65 mm Hg. ANSWER:  kJ/mol

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section18.5: Entropy Changes And Spontaneity
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Consider the reaction

N2(g) + 3H2(g)----->2NH3(g)

Using the standard thermodynamic data in the tables linked above, calculate Grxn for this reaction at 298.15K if the pressure of each gas is 38.65 mm Hg.

ANSWER:  kJ/mol

Nitrogen N₂ (g) N (g) NH3 (g) NH3 (aq) NH4+ (aq) AHºf (kJ/mol) AG°f (kJ/mol) Sº (J/mol K) 191.6 153.3 192.5 0 472.7 -46.1 -80.0 -132.0 0 455.6 -16.5 -27.0 -79.0 111.0 113.0
Transcribed Image Text:Nitrogen N₂ (g) N (g) NH3 (g) NH3 (aq) NH4+ (aq) AHºf (kJ/mol) AG°f (kJ/mol) Sº (J/mol K) 191.6 153.3 192.5 0 472.7 -46.1 -80.0 -132.0 0 455.6 -16.5 -27.0 -79.0 111.0 113.0
Hydrogen H₂ (g) H (g) Ht (g) H+ (aq) OH(aq) H₂O (1) H₂O (g) H₂O₂ (1) AH⁰f (kJ/mol) AG°f (kJ/mol) Sº (J/mol K) 130.7 114.7 218.0 1536.2 -230.0 -285.8 -241.8 -187.8 0 203.2 -157.0 -237.1 -228.6 -120.4 - 11.0 69.9 188.8 109.6
Transcribed Image Text:Hydrogen H₂ (g) H (g) Ht (g) H+ (aq) OH(aq) H₂O (1) H₂O (g) H₂O₂ (1) AH⁰f (kJ/mol) AG°f (kJ/mol) Sº (J/mol K) 130.7 114.7 218.0 1536.2 -230.0 -285.8 -241.8 -187.8 0 203.2 -157.0 -237.1 -228.6 -120.4 - 11.0 69.9 188.8 109.6
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