Calculate Keq for the following reaction at 25 °C. A + B C + D AG = -1.45 kcal/mol = AG°= - RT LnKea R= 0.001987 kcal/mol.K

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**Calculate \( K_{eq} \) for the following reaction at 25 °C.**

\[ A + B \rightleftharpoons C + D \]

\(\Delta G = -1.45 \, \text{kcal/mol}\)

\[
\Delta G^0 = -RT \ln K_{eq} 
\]

\( R = 0.001987 \, \text{kcal/mol.K} \)

---

This image presents a chemical equilibrium problem where you are asked to calculate the equilibrium constant (\( K_{eq} \)) for a given reaction at 25 °C. The reaction involves the conversion of reactants A and B into products C and D. The Gibbs free energy change (\( \Delta G \)) for the reaction is provided as -1.45 kcal/mol. 

The formula to calculate \( K_{eq} \) involves the standard Gibbs free energy change (\( \Delta G^0 \)), the universal gas constant (\( R \)), and the absolute temperature in Kelvin. The relationship is shown by the equation:

\[
\Delta G^0 = -RT \ln K_{eq}
\]

Where:
- \( R \) is the gas constant (given as 0.001987 kcal/mol.K).
- \( T \) is the temperature in Kelvin.
- \( K_{eq} \) is the equilibrium constant.

The challenge is to apply this equation and solve for \( K_{eq} \).
Transcribed Image Text:**Calculate \( K_{eq} \) for the following reaction at 25 °C.** \[ A + B \rightleftharpoons C + D \] \(\Delta G = -1.45 \, \text{kcal/mol}\) \[ \Delta G^0 = -RT \ln K_{eq} \] \( R = 0.001987 \, \text{kcal/mol.K} \) --- This image presents a chemical equilibrium problem where you are asked to calculate the equilibrium constant (\( K_{eq} \)) for a given reaction at 25 °C. The reaction involves the conversion of reactants A and B into products C and D. The Gibbs free energy change (\( \Delta G \)) for the reaction is provided as -1.45 kcal/mol. The formula to calculate \( K_{eq} \) involves the standard Gibbs free energy change (\( \Delta G^0 \)), the universal gas constant (\( R \)), and the absolute temperature in Kelvin. The relationship is shown by the equation: \[ \Delta G^0 = -RT \ln K_{eq} \] Where: - \( R \) is the gas constant (given as 0.001987 kcal/mol.K). - \( T \) is the temperature in Kelvin. - \( K_{eq} \) is the equilibrium constant. The challenge is to apply this equation and solve for \( K_{eq} \).
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