Consider the reaction: SO2Cl2(g)⇌SO2(g)+Cl2(g) Kp=2.91×103 at 298 K In a reaction at equilibrium, the partial pressure of SO2 is 159 torr and that of Cl2 is 285 torr . Part A What is the partial pressure of SO2Cl2 in this mixture?
Consider reaction, SO2Cl2 (g) SO 2 (g) + Cl 2 (g)
For above reaction, equilibrium constant is K p = ( P SO 2 ) ( P Cl 2 ) / ( P SO2Cl2 ) = 2.91 10 3
We have , equilibrium partial pressure of SO 2 = 159 torr and equilibrium partial pressure of Cl 2 = 285 torr
( 159 ) ( 285 ) / ( P SO2Cl2 ) = 2.91 10 3
( P SO2Cl2 ) = ( 159 ) ( 285 ) / 2.91 10 3
( P SO2Cl2 ) = 15.57 torr
ANSWER : Partial pressure of SO2Cl2 at equilibrium is 15.57 torr
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