Two reaction progress variables are needed. These are chosen as:

Other choices of reaction progress variables are possible, but the calculated equilibrium composition would be unaffected. Assuming that the initial gas is pure water vapor, the setup is shown in Table 9.2. From the definitions above and the balancing numbers in the equilibrium reactions, the moles of OH produced are twice those of H2 produced. Substituting the equilibrium mole fractions from the table into Eqs (9.29) yields:


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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