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1. Where is the position of equilibrium for reactions with thefollowing equilibr

ID: 686027 • Letter: 1

Question

1. Where is the position of equilibrium for reactions with thefollowing equilibrium constants?    a. 500 at 80oC    b. 1.2 x 10-2 @20oC    c. 6.5 x 103 @25oC    d. 0.247 at 100oC 2. The equilibrium constant for the following reaction is0.212@100o C when[NO2] = 0.20M.     What is the equilibrium[N2O4]? 1. Where is the position of equilibrium for reactions with thefollowing equilibrium constants?    a. 500 at 80oC    b. 1.2 x 10-2 @20oC    c. 6.5 x 103 @25oC    d. 0.247 at 100oC 2. The equilibrium constant for the following reaction is0.212@100o C when[NO2] = 0.20M.     What is the equilibrium[N2O4]?

Explanation / Answer

2NO2 <....................>N2O4 so K =[N2O4]eq/[NO2]2eq when K = 500 then [N2O4]eq =500[NO2]2eq so the poistion of equlibrium istowards right. when K = 0.012 then [N2O4]eq =0.012[NO2]2eq so the poistion of equlibriumis towards left. when K = 6500 then [N2O4]eq =6500[NO2]2eq so the poistion of equlibrium istowards right when K= 0.247 then [N2O4]eq =0.247[NO2]2eq so the poistion of equlibriumis towards left. --------------- 2)   K =[N2O4]eq/[NO2]2eq        0.212 =[N2O4]eq/ (0.20M)2           [N2O4]eq =0.212*(0.20M)2   = 0.00848M           [N2O4]eq =0.212*(0.20M)2   = 0.00848M