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This is a two-part question, please help! PART A: Consider these hypothetical chemical reactions: A⇌B,ΔG= 10.9...

This is a two-part question, please help!

PART A:

Consider these hypothetical chemical reactions:

  1. A⇌B,ΔG= 10.9 kJ/mol
  2. B⇌C,ΔG= -29.3 kJ/mol
  3. C⇌D,ΔG= 8.40 kJ/mol

What is the free energy, ΔG, for the overall reaction, A⇌D?

PART B:

Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are

1.2.luciferin+O2ATP⇌⇌oxyluciferin+lightAMP+PPiΔG∘=−31.6 kJ/mol

If the overall ΔG∘ of the coupled reaction is -8.30 kJ/mol , what is the equilibrium constant, K, of the first reaction at 29 ∘C ?

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