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Biochemistry
AGO

AGO

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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For the reaction: glutamate⁻ (aq) + oxaloacetate²⁻ (aq) ⇌ α-ketoglutarate²⁻ (aq) + aspartate⁻ (aq) The equilibrium constant at standard temperature is \( K_{eq}' = 2.82 \). What is the value of \( \Delta G^\circ' \) for this reaction? Select one: - ○ 6.99 kJ/mol - ○ -8.62 kJ/mol - ○ -2.57 kJ/mol - ○ -6.99 kJ/mol - ○ 2.57 kJ/mol
Transcribed Image Text:For the reaction: glutamate⁻ (aq) + oxaloacetate²⁻ (aq) ⇌ α-ketoglutarate²⁻ (aq) + aspartate⁻ (aq) The equilibrium constant at standard temperature is \( K_{eq}' = 2.82 \). What is the value of \( \Delta G^\circ' \) for this reaction? Select one: - ○ 6.99 kJ/mol - ○ -8.62 kJ/mol - ○ -2.57 kJ/mol - ○ -6.99 kJ/mol - ○ 2.57 kJ/mol
Expert Solution
Step 1: Explain Gibb's free energy

 Gibb's free energy:

  • It is denoted as ∆G.
  • It is a fundamental thermodynamical concept.
  • It measures a capacity to do work at constant temperature and pressure.
  • If ∆G < 0, the reaction is spontaneous in the forward direction.
  • If ∆G > 0, the reaction is non-spontaneous in the forward direction.
  • If ∆G = 0, the system is at equilibrium.
  • It helps to predict the reaction spontaneity.
  • It guides in optimizing cellular processes and metabolic pathways.
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