Page 48 - Chemical equilibria Volume 4
P. 48

24     Chemical Equilibria
                             If we start with the three components, the gaseous phase is equimolecular
                           in ammonia and hydrogen chloride.
                             Another example is given by the decomposition of calcium carbonate:
                                 < Ca CO >=<  CaO > + {CO 2 }                            [1R.5]
                                        3
                             If, at the initial time, we begin with a mixture of the three components in
                           arbitrary proportions because they  belong to different phases, the
                           transformation is always azeotropic.
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