1) Phosgene (carbonyl chloride), COCl2, is an extremely toxicgas that is used in manufacturing certain dyes and plastics.Phosgene can be produced by reacting carbon monoxide and chlorinegas at high temperatures:
CO(g)+Cl2(g)?COCl2(g)
Carbon monoxide and chlorine gas are allowed to react in asealed vessel at 459?C . At equilibrium, the concentrations weremeasured and the following results obtained:
| Gas | Partial Pressure
(atm) |
| CO | 0.880 |
| Cl2 | 1.18 |
| COCl2 | 0.200 |
What is the equilibrium constant, Kp, of thisreaction?
2) In Part A, you were given the equilibrium pressures, whichcould be plugged directly into the formula for K. In PartB however, you will be given initial concentrations and only oneequilibrium concentration. You must use this data to find all threeequilibrium concentrations before you can apply the formula forK.
Part B
The following reaction was performed in a sealed vessel at 753?C:
H2(g)+I2(g)?2HI(g)
Initially, only H2 and I2 were present at concentrations of[H2]=3.35M and [I2]=2.15M. The equilibriumconcentration of I2 is 0.0500M . What is the equilibriumconstant, Kc, for the reaction at this temperature?
Express your answer numerically.
