Chemical Equilibrium: The ICE table

Identify the changes in concentration that occur for chemical species in equilibrium systems using the ICE table

Calculate equilibrium concentrations and equilibrium constants, using various algebraic approaches using the ICE table.

"I" stands for the initial concentrations (or pressures) for each species in the reaction mixture.

"C" represents the change in the concentrations (or pressures) for each species as the system moves towards equilibrium.

"E" represents the equilibrium concentrations (or pressures) of each species when the system is in a state of equilibrium.

Under certain conditions, the equilibrium constant Kc for the decomposition of PCl₅(g) into PCl₃(g) and Cl₂(g) is 0.0211.

What are the equilibrium concentrations of PCl₅, PCl₃, and Cl₂ in a mixture that initially contained only PCl5 at a concentration of 1.00 M?

Step 1

Determine the direction the reaction proceeds.

The balanced equation for the decomposition of PCl₅ is

PCl₅(g)⇌PCl₃(g)+Cl₂(g)

Chemistry 2e. an OpenStax

https://openstax.org/books/chemistry-2e/pages/preface