At 450 K the equilibrium concentrations for the followingreaction were measured

Question

At 450 K the equilibrium concentrations for the followingreaction were measured and used to calculate the Kc value of0.0321. What is the value of Kp for the reverse reaction under sameconditions?    SO2 Cl2 (g) -->SO2 (g) + Cl2 (g)                        <-- At 450 K the equilibrium concentrations for the followingreaction were measured and used to calculate the Kc value of0.0321. What is the value of Kp for the reverse reaction under sameconditions?    SO2 Cl2 (g) -->SO2 (g) + Cl2 (g)                        <--

Explanation / Answer

                   SO2Cl2 (g) -->SO2 (g) + Cl2 (g)               Kc   = 0.0321           Theequilibrium constant for the reverse reaction is  Kc1 = 1 /Kc                                                                                                   = 1 / 0.0321                                                                                                   = 31.15           SO2 (g)+ Cl2 (g) --> SO2 Cl2 (g)               Kp = Kc * (RT)n          n = 1- (2) = -1          Kp =31.15 ( 0.0821 L.atm/K.mol * 450K)-1                     = 0.843                     = 0.843

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