Consider the reaction:

$A+$BlongrightarrowC$+D$

At $25C,$ the equilibrium concentrations were measured as:

$\{\begin{array}{c}\text{:}[A{]}_{eq}=10M\end{array}$

$\{\begin{array}{c}\text{:}[B{]}_{eq}=15M\end{array}$

$\{\begin{array}{c}\text{:}[C{]}_{eq}=10M\end{array}$

$\{\begin{array}{c}\text{:}[D{]}_{eq}=10M\end{array}$

Calculate $G$ for this reaction in units of $\frac{J}{m}ol.$

Answer must be entered using appropriate significant digits.