Which one of the following statements is true about the equilibrium constant for a reaction if ΔG° for the reaction is negative? K > 1 K < 1 K = 1 K = 0

Respuesta :

Answer : K > 1is the true statement about the equilibrium constant for a reaction if [tex]\Delta G^o[/tex] for the reaction is negative.

Explanation :

The relation between the equilibrium constant and standard Gibbs, free energy is:

[tex]\Delta G^o=-RT\times \ln K[/tex]

where,

[tex]\Delta G^o[/tex] = standard Gibbs, free energy

R = gas constant

T = temperature

K = equilibrium constant

From the above relation we conclude that,

When K > 1 then the value of [tex]\Delta G^o[/tex] is negative.

When K < 1 then the value of [tex]\Delta G^o[/tex] is positive.

When K = 1 then the value of [tex]\Delta G^o[/tex] is zero.

When K = 0 then the value of [tex]\Delta G^o[/tex] is undefined.

Hence, K > 1is the true statement about the equilibrium constant for a reaction if [tex]\Delta G^o[/tex] for the reaction is negative.

The statement that is true if the reaction is negative is K > 1.

WHAT IS EQUILIBRIUM CONSTANT?

Equilibrium constant portrays the relationship between the products and reactants when a chemical reaction reaches equilibrium.

In a chemical reaction;

∆G° = standard Gibbs, free energy

R = gas constant

T = temperature

K = equilibrium constant

It can be said that;

  • When K > 1 then the value of ∆G° is negative.
  • When K < 1 then the value of ∆G° is positive.
  • When K = 1 then the value of ∆G° is zero.
  • When K = 0 then the value of ∆G° is undefined.

Therefore, the statement that is true if the reaction is negative is K > 1.

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