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When do Kp,Kc and kx have the same values?
Accepted Answer
Kp, Kc, and Kx have the same values when the change in the number of moles of gas (Δn) is zero for the reaction. This means that the number of moles of gaseous products equals the number of moles of gaseous reactants. For example, in the reaction 2NO(g) + O2(g) ⇌ 2NO2(g), Δn = (2 - 3) = -1, so Kp and Kc are not equal. However, in the reaction N2(g) + 3H2(g) ⇌ 2NH3(g), Δn = (2 - 4) = -2, and Kp = Kc.
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