Part A: Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is u

Question

Part A: Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures:

CO(g)+Cl2(g)?COCl2(g)

Carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 475?C . At equilibrium, the concentrations were measured and the following results obtained:

What is the equilibrium constant, Kp, of this reaction?

Part B: The following reaction was performed in a sealed vessel at 780?C :

H2(g)+I2(g)?2HI(g)

Initially, only H2 and I2 were present at concentrations of [H2]=3.45M and [I2]=2.05M. The equilibrium concentration of I2 is 0.0300M . What is the equilibrium constant, Kc, for the reaction at this temperature?

Explanation / Answer

It is similar problem those i solved previously, you just need to change values if you have any doubt then let me know please..

Part A

Kp=P[CoCl]/P[CO]P[Cl2]
Kp=0.180/(0.850x1.23)
Kp=0.180/1.05
Kp=0.172

Part B

H2 + I2 --> 2HI

set up an ICE chart
H2..........I2.....HI
3.3.......2.8.....0
-x..........-x....+2x
3.3-x...2.8-x....2x

we know that [I2]eq = 0.08M so we can determine x
2.8 - x = 0.08
x = 2.72

so, [H2] = 3.3 - 2.72 = 0.58M
[I2] = 0.08M
[HI] = 5.44M

Kc = [HI]^2 / [H2][I2]
Kc = (5.44)^2 / (0.58)(0.08) = 637.8

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects