CHAPTER16

# 1615 remains constant therefore the mole numbers of

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Unformatted text preview: of n. An increase in pressure at a specified temperature increases the number of moles of the reactants and decreases the number of moles of products if n is positive, have the opposite effect if n is negative, and have no effect if n is zero. 5. The presence of inert gases affects the equilibrium composition (although it does not affect the equilibrium constant KP). This can be seen from Eq. 1615, which involves the term (1/Ntotal)n, where Ntotal is the total number of moles of the ideal-gas mixture at equilibrium, including inert gases. The sign of n determines how the presence of inert gases influences the equilibrium composition (Fig. 1610). An increase in the number of moles of inert gases at a specified temperature and pressure decreases the number of Chapter 16 moles of the reactants and increases the number of moles of products if n is positive, have the opposite effect if n is negative, and have no effect if n is zero. 6. When the stoichiometric coefficients are doubled, the value of KP is squared. Therefore, when one is using KP values from a table, the stoichiometric coefficients (the n's) used in a reaction...
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