A simplification of gas clathrate hydrate thermochemistry using the Thermodynamic Difference Rule (TDR). Part 1. Generation of particularly simple forms for standard thermodynamic parameters for specific hydrates

Since no data exist for ΔfGo(MpXq.nH2O,s) or S298o(MpXq.nH2O,s) in the literature, we further conjecture that, in accordance with previous studies, the equations: ΔfGo(MpXq.nH2O,s)/kJmol-1≈ΘGf(H2O,s-g)n=-242n and S298o(MpXq.nH2O,s)/JK-1mol-1≈ΘSo(H2O,s-g)n=41n. could reasonably be anticipated to predict these unknown values for which no data are yet reported. The ability of TDR to tease out simple empirical relationships which have not been noticed previously amounts to a considerable simplification of this area of thermochemistry and provides the means of quick access estimation of (accurate) standard thermodynamic parameters for clathrate hydrates in the category studied here.