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

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We are being asked to calculate K_pfor the decomposition of phosgene (CoCl₂) where its K_c is given.

COCl_2(g) ⇌ CO_(g) + Cl_2(g)

When dealing with equilibrium:

• K_c → equilibrium units are in molarity
• K_p → equilibrium units in terms of pressure

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

$K_{p} = K_{c} {(RT)}^{∆ n}$

82% (204 ratings)

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

COCl₂(g) ⇌ CO(g) + Cl₂(g)

Calculate K_p for this reaction if K_c = 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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