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If ΔG of a chemical reaction has a negative value, the reaction

  • A.releases energy
  • B.requires energy
  • C.both (a) and (b)
  • D.none of these

Answer: A

Correct answer: releases energy

A negative \(\Delta G\) means the products hold less free energy than the reactants, so the reaction is exergonic and proceeds spontaneously in that direction. A positive \(\Delta G\) marks an endergonic reaction, which will run only if coupled to one that releases more.

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