Returns ΔG0 = -RT lnK
for any recognised reaction at 25 °C. The calculator is based on the article
(New J. Chem., 2018, 42, 7617; DOI:
Use the general JESS format for reactions or
the shortened method for formation reactions
(when a species is formed just from its elements).
More powerful database interrogation programs are available
when the JESS package is installed locally.