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Unformatted text preview: + B–(aq). The equilibrium constant
KC (ignoring the standard concentration terms for simplicity) is given by:
KC = c A + % c B − (n A + / V ) % (n B − / V ) n A + % n B − 1
(n AB /V ) So, if the number of moles of each species remained the same, as the system is
diluted, the equilibrium constant decreases. Since this cannot happen (KC is a
constant at a given temperature), the number of moles of A+(aq) and B–(aq) must
increase with increasing volume.
(b) change in pressure:
Consider the reaction N2(g) + 3H2(g) W 2NH3(g). Similar arguments as
above can be made for KP as pressure is changed. However, it is sufficient to note
that there are 4 moles of gases on the reactant sid...
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