Solving for the Equilibrium Composition

The law of mass action for a particular reaction (Eq (9.24)) is but a single equation with more than one variable. As an example, Eq (9.21a) contains three unknown mole fractions. There are two principal methods for incorporating the conservation equations into the analysis: the "element conservation" method and the "reaction progress variable" method. Both of these methods require the following input information:

• The temperature and total pressure

• AHo and ASo of the reaction

This information fixes KP by Eq (9.20) and K by Eq (9.24). Thereafter, the two methods differ.

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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