Ib I

Fig. 8.1 Components A and B equilibrated in two phases I and II at specified pressure and temperature

Phases I and II can be solid, liquid or gas in any combination except two gases. Chemical reaction between components A and B is not permitted; the two species retain the same molecular form in the two phases they occupy (with the exception of the dissolution of a diatomic gas in some solids).

Practically important examples of two-component, two-phase equilibria include the following:

Gas-liquid: example: oxygen dissolution in water. Although the solubility is small, the effect on corrosion of metals is profound.

Gas-solid: example: dissolution of hydrogen in metals. The special feature of this process is the dissociation of molecular hydrogen into atoms in the metal

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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