# Problem: Phosgene, COCl2, a poisonous gas, decomposes according to the equationCOCl2(g) ⇌ CO(g) + Cl2(g)Calculate Kp for this reaction if Kc = 0.083 at 900ºC.A)  0.125B)  8.0            C)  6.1            D)  0.16          E)  0.083

###### FREE Expert Solution
82% (204 ratings)
###### FREE Expert Solution

We are being asked to calculate Kp for the decomposition of phosgene (CoCl2) where its Kc is given.

COCl2(g)  CO(g) + Cl2(g)

When dealing with equilibrium:

Kc → equilibrium units are in molarity
Kp → equilibrium units in terms of pressure

Kp and Kc are related to one another by the following equation below:

$\overline{){{\mathbf{K}}}_{{\mathbf{p}}}{\mathbf{=}}{{\mathbf{K}}}_{{\mathbf{c}}}{\left(\mathbf{RT}\right)}^{\mathbf{∆}\mathbf{n}}}$

82% (204 ratings)
###### Problem Details

Phosgene, COCl2, a poisonous gas, decomposes according to the equation

COCl2(g) ⇌ CO(g) + Cl2(g)

Calculate Kp for this reaction if Kc = 0.083 at 900ºC.

A)  0.125

B)  8.0

C)  6.1

D)  0.16

E)  0.083

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chemical Equilibrium concept. You can view video lessons to learn Chemical Equilibrium. Or if you need more Chemical Equilibrium practice, you can also practice Chemical Equilibrium practice problems.

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Based on our data, we think this problem is relevant for Professor Maxwell's class at UCF.