Calculate AG for the above reaction and indicate whether the reaction is favorable or unfavorable and explain how you know.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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BMB 4210: Sample problems
A+B C+D
20°C
AG° = 4 KJ/mol
A = 90mM
[B] = 15M
= 4M D = 300MM R= 8.314 J/mol●K
%3D
%3D
%3D
Calculate AG for the above reaction and indicate whether the reaction is favorable or unfavorable
and explain how you know.
Transcribed Image Text:BMB 4210: Sample problems A+B C+D 20°C AG° = 4 KJ/mol A = 90mM [B] = 15M = 4M D = 300MM R= 8.314 J/mol●K %3D %3D %3D Calculate AG for the above reaction and indicate whether the reaction is favorable or unfavorable and explain how you know.
Expert Solution
Step 1

From the given balanced chemical 

Reaction Quotient (Q) = [D][C]/[A][B]

Q = 4 × 300/15×90

  = 0.889 

Now, relationship between □G and Q

□G = □G° +( RT ×ln(Q))/1000

 = 4 + 8.314 × 293×ln(0.889)/1000

= 3.71 kJ/mol

 

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