Question

At 400 K, the equilibrium constant for the reaction Br 2 (g) + Cl 2 (g)   2BrCl (g) is K p = 7.0. A closed vessel at 400 K is charged with 1.00 atm of Br 2 (g), 1.00 atm of Cl 2 (g), and 2.00 atm of BrCl (g). Use Q to determine which of the statements below is true.

The equilibrium partial pressures of Br2, Cl2, and BrCl will be the same as the initial values.

The reaction will go to completion since there are equal amounts of Br2 and Cl2.

The equilibrium partial pressure of BrCl (g) will be 4.00 atm.

The equilibrium partial pressure of Br2 will be greater than 1.00 atm. At equilibrium, the total pressure in the vessel will be less than the initial total pressure.

Answer 1

Dear student,

Only third statement is correct.

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