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) Equilibrium concentrations are determined for reactants andproducts of the fol

ID: 682800 • Letter: #

Question

)          Equilibrium concentrations are determined for reactants andproducts of the following chemical reaction at 25°C:

                                   1 A + 1B    1 C;            ?Hrxn = 150 kJ/mol

                                   Temp(°C)                  [A]                 [B]                  [C]

                                      25°C                      0.500             0.500             0.025

           

           Determine the equilibrium constant for this chemical reaction at 75°C

Explanation / Answer

Kc = [C] / ( [A] [B] ) = 0.025 / (0.500 x 0.500) = .1