Express the Equilibrium Constant for the Following Reaction:
PCl₅(g)

Express the equilibrium constant for the following reaction:
PCl₅(g) ? PCl₃(g) + Cl₂(g)

A) K_P = $\frac { \mathrm { P } \left( \mathrm { PCl } _ { 5 } \right) } { \mathrm { P } \left( \mathrm { PCl } _ { 3 } \right) \times \mathrm { P } \left( \mathrm { Cl } _ { 2 } \right) }$
B) K_P = $\frac { \mathrm { P } ^ { 2 } \left( \mathrm { PCl } _ { 3 } \right) \times \mathrm { P } ^ { 2 } \left( \mathrm { Cl } _ { 2 } \right) } { \mathrm { P } ^ { 2 } \left( \mathrm { PCl } _ { 5 } \right) }$
C) K_P = $\frac { \mathrm { P } \left( \mathrm { PCl } _ { 3 } \right) \times \mathrm { P } ^ { 2 } ( \mathrm { Cl } ) } { \mathrm { P } \left( \mathrm { PCl } _ { 5 } \right) }$
D) K_P = $\frac { \mathrm { P } \left( \mathrm { PCl } _ { 3 } \right) \times \mathrm { P } \left( \mathrm { Cl } _ { 2 } \right) } { \mathrm { P } \left( \mathrm { PCl } _ { 5 } \right) }$
E) K_P = $\frac { \mathrm { P } ^ { 1 / 2 } \left( \mathrm { PCl } _ { 5 } \right) } { \mathrm { P } ^ { 1 / 2 } \left( \mathrm { PCl } _ { 3 } \right) \times \mathrm { P } ^ { 1 / 2 } \left( \mathrm { Cl } _ { 2 } \right) }$

Correct Answer:

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