FSU
CHM 1046 -
LECTURE NOTES
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CHM1046 LECTURE NOTES14.4Expressing the Equilibrium constant in terms of pressure: 2SO3 2SO2 + O2Kc = [SO2]2[O2]/ [SO3]2Kp= P(SO2) * P(O2)/ P(so3)2Kp= Kc (RT)ΔnnΔ= stoichiometric coefficients of products – stoichiometric coefficients of Σ Σreactants(example 14.3 in book for practice)14.6Calculating the Equilibrium constant:Example:A(g) 2B (g)- The initial concentration of A, [A]o, = 1.00M. - When equilibrium is reached, [A] = 0.75M- Find the Value of K(Use an ICE Chart)[A] 2[B]I 1.00 M 0C -0.25M +2(0.25)ME = 0.75M = 0.5M(I= initial, C= change, E= equilibrium; E= I+C)K= [B]2/ [A]K= (0.50)2/ (0.75)K= 0.33(Do example 14.5 in the book for extra
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