The Reaction of Bromine Gas with Chlorine Gas, Br₂ (G)

The reaction of bromine gas with chlorine gas, Br₂ (g) + CL₂ (g) ⇄ 2 BrCl(g) , has a K_p value of 7.20.If the initial partial pressures of Br₂, Cl₂, and BrCl in a closed container are all 0.500 atm, what is the equilibrium partial pressure of BrCl(g) ?

A) 0.500 atm
B) 0.680 atm
C) 0.029 atm
D) 0.859 atm
E) 0.987 atm