Question

The free energy change under standard conditions $\left(G\right)$ is related to the equilibrium constant by the van't Hoff isotherm: $G=-RTlnK$. But what does the symbol $R$ represent?

• A. The entropy of the system
• B. The gas constant
• C. The Avogadro constant
• D. The reaction quotient

Answer 1

The correct option is B The gas constant

$R$ denotes the universal gas constant, which simply helps to calculate the value of $G$ with the value of $K$. Here, $R=8.314Jmo{l}^{-1}{K}^{-1}or0.082Latmmo{l}^{-1}{K}^{-1}$