At T = 250 C the reaction PCl 5 ( g ) PCl 3 ( g ) + Cl 2 ( g ) has an equilibrium constant in terms of pressures K p = 2. (a) Suppose the initial...
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# At T = 250 °C the

reaction

• PCl5(gPCl3(g) + Cl2(g)

has an equilibrium constant in terms of pressures Kp = 2.15.

(a) Suppose the initial partial pressure of PCl5 is 0.319 atm, and PPCl3 = PCl2 = 0.944 atm. Calculate the reaction quotient Qp and state whether the reaction proceeds to the right or to the left as equilibrium is approached.

Qp =

Reaction proceeds to the _______rightleft.

(b) Calculate the partial pressures at equilibrium.

PPCl5 =  atm

PPCl3 =  atm

PCl2 =  atm

(c) If the volume of the system is then decreased, will there be net formation or net dissociation of PCl5?

There will be net _________formationdissociation.

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