Calculating Equilibrium Constants The equilbrum constant, K, of a reaction at a

Question

Calculating Equilibrium Constants The equilbrum constant, K, of a reaction at a concentrations or pressures of the reactonts and Part A Phosgene (carbonyl chiloride). COCh. is an exdremely toode gas tha is produced by reacting carbon monoiide and chlorine gas at high For a gaseous reaction with the general form Carbon monoxide and chlorine gas are allowed to react in n sesled vessel at 460·C. At equabrium, te concentrations were measured and the folowing results obtained the K, and Kp esxpressions are given by Partial Pressure Gas (atm) 0810 126 COCz0230 co The subscript C or p indicates whether K is s in terms of ooncentrations or pressures expressions do not include teers for any pure solids or liquids thet may be nvolved since their composibion does not change throughout the resction. The slandard state of a pure substance is the pure substance ieself, and What is the equilibrium constant, Kp of this reaction? Express your answer numerically Hints to 1, and will not impact the magnitude of K My Answers Give Up Deriving concentrations from data in Part A. you were given the equibrium pressures, which could be plugged directly into the formule for K in Part B however, you will be given ooncentrations and only one equilibrium concentration You must use this data to ind all three equilibrium concentrations before you can spply the formula forK Part B The fo lowing ,esclon wss performed n ",aled vessei at 750-C 3:32 PM

Explanation / Answer

A)

Kp

First, let us define the equilibrium constant for any species:

The equilibrium constant will relate product and reactants distribution. It is similar to a ratio

The equilibrium is given by

rReactants -> pProducts

Keq = [products]^p / [reactants]^r

For a specific case:

aA + bB = cC + dD

Keq = [C]^c * [D]^d / ([A]^a * [B]^b)

Kp = P-COCl2 /(P-CO)(PCl2)

Kp = (0.23^2)/((0.81*1.26))

Kp = 0.0518

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