Equilibria containing pressure terms (Kc and Kp)
PV = nRT or P/RT = n/V
n/V = molar concentration
Thus, pressure is directly proportional to molar concentration.
2NO(g) + O2(g) 2NO2(g)
Qp = P2(NO2)/P2(NO) x P(O2)
Kp = equilibrium constant based on pressures
Note that in the above equation, ēngas = -1
(at constant T)
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