Ellingham Diagram Tin. Since h and s are essentially constant with temperature unless a phase change occurs the free energy versus temperature plot can be drawn as a series of straight lines where s is the slope and h is the y intercept. Howard data from thomas b.
Part 1 2006 stanley. The interactive ellingham diagram the interactive ellingham diagram included within this tlp is a teaching and learning tool which you can use to obtain a variety of useful thermodynamic information pertaining to a wide range of reactions. Howard data from thomas b.
An overview of how ellingham diagrams are constructed from oxygen partial pressures as a function of temperature and the molar free energy of a reaction as a.
Reed free energy of formation of binary compounds mit press. 2xm s o 2 g 2m x o s as is evident from the reaction the gaseous amount of reactant is decreasing from left to right as the product formed is solid metal oxide on the right side. An ellingham diagram is a plot of g versus temperature. Ellingham diagrams are a particular graphical form of the principle that the thermodynamic feasibility of a reaction depends on the sign of δg the gibbs free energy change which is equal to δh tδs where δh is the enthalpy change and δs is the entropy change.
