Gibbs energy of reaction (source code)

= Gibbs energy of reaction
{c}
{title2=$\Delta_rG$}

The derivative of <Gibbs energy> with respect to reaction extent at fixed <temperature> and <pressure>: $\Delta_rG=\sum_i\nu_i\mu_i$. For a reversible electrochemical cell reaction, $\Delta_rG=-nFE$.