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
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Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.