BPJ Code

∆G_f = ∆H_f - T.∆S_f

∆H_f and ∆S_f can be approximated by various formulae with parameters fitted to calorimetry data.

From ∆G, derive the equilibrium constant via the identity:

∆G = -RT ln K_eq

Click on the reactants or products in the chemical equation below to choose different species. You need to balance the equation yourself; the garbage-in, garbage-out principle applies.

Estimates are valid only for temperatures within the intersection of ranges of all involved molecules' thermochemistry model formulae. For most species supported here that range is 298K - 6000K.

Take note of the states of matter of the available substances. They may not always correspond with STP. The brotherhood of the benzene ring will know what you did.