CONTENTS xvii 



12. Derivation of an Equation in Which the Argument 



Is Pressure, Temperature, and Composition. ... 251 



13. Derivation of an Equation Applying to the Solu- 



bility (t-x) Curve 252 



14. Correlation of the t-x and p-t Curves 253 



15. EquiUbrium Involving SoUd Solutions 254 



16. AppHcation of Equation [97] to a System in 



Which Compounds Are Formed. H20-CaCl2.. 256 



17. The Minimum Melting Point of a Dissociating 



Compound 257 



18. Correlation of the t-x and p-t Curves 258 



19. The Equilibrium between a Dissociating Hydrate 



and Its Products of Dissociation 259 



20. The Equilibrium, Two SoUds + Liquid 261 



21. The Equilibrium, SoUd + Solution + Vapor 261 



22. Types of Invariant Points and Univariant Systems. 262 



23. Equilibrium Involving Two Immiscible Liquids. 



Water-phenol 263 



V. Application of Equation [97] to Systems of Three Com- 

 ponents 267 



24. Transformation and Interpretation of Equations. . 267 



25. Equilibrium, K20Si02-^H20 + Solution + 



Vapor 269 



26. Coincidence Theorem 274 



27. Equilibrium, K20-2Si02-H20 + K2O -28102 + 



Solution + Vapor 276 



28. Equilibrium, K20-Si02-*H20 + KjO-SiOa -h 



Solution + Vapor 278 



29. Equilibrium, K2O -28102 + K20-4Si02-H20 + 



Solution + Vapor 279 



30. The Order of p-t Curves around an Invariant 



Point 280 



31. Generalized Theorem Concerning the Order of p-t 



Curves around an Invariant Point 283 



32. Generalizations Concerning p-t Curves 286 



33. Order of the p-t Curves in the Ternary System, 



H2O-K2O -8102-8102 288 



H. The Graphical Representation op Equilibria in 

 Binary Systems by IVIeans of the Zeta (Free 

 Energy) Function (Gibbs I, pp. 115-129), F. A. H. 

 Schreinemakers 295 



I. Introduction 295 



II. The ^-x Diagram and the f-Curve (Free Energy Curve) 295 

 III. Binary Systems in Which Besides Liquids Only the Solid 



Components W and X Can Occur 304 



