(A)
Interpretation:
The equilibrium constant using the shortcut van’t Hoff approach.
Concept Introduction:
The expression of the equilibrium constant is,
Here, standard change in Gibbs free energy is
The short-cut van’t Hoff equation is,
Here, standard change in Gibbs free energy at reference temperature is
The expression of the standard change in Gibbs free energy at reference temperature is,
Here, standard Gibbs free energy of
The expression of the standard enthalpy of reaction at reference temperature is,
Here, standard enthalpy of reaction of
(B)
Interpretation:
The equilibrium constant using the rigorous approach.
Concept Introduction:
The expression of the standard change in Gibbs free energy as a function of temperature is,
Here,
The expression of the constant
The expression of the constant
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