# Problem: What is the value of K for this aqueous reaction at 298 K? ΔG° = 21.29 kJ/molA + B ⇌ C + D

###### FREE Expert Solution

We’re being asked to determine the equilibrium constant (K) at 298 K for the given reaction:

A + B ⇌ C + D

Recall that ΔG˚rxn and K are related to each other:

$\overline{){\mathbf{\Delta G}}{{\mathbf{°}}}_{{\mathbf{rxn}}}{\mathbf{=}}{\mathbf{-}}{\mathbf{RTlnK}}}$

We can now solve for the equilibrium constant using these given values:

ΔG˚rxn = 21.29 kJ/mol

R = 8.314 J/mol • K

T = 298 K

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###### Problem Details

What is the value of K for this aqueous reaction at 298 K? ΔG° = 21.29 kJ/mol

A + B ⇌ C + D