Contents Chapter 5: Quick Reference Guide to the Surface Kinetics Subroutine Library | Print page 5.7. Gas Constants and UnitsTable 5.6: Gas Constants and Units SubroutinesSubroutineDescriptionSUBROUTINE SKRP (ISKWRK, RSKWRK, RU, RUC, PATM) Returns universal gas constants and the pressure of one standard atmosphere. « 5.6. Information about Surface Reactions 5.8. Thermodynamic Properties (Non dimensional) »