Consider the following reaction:
cus(s) + o2(g) ⇌ cu(s) + so2(g)
a reaction mixture initially contains 2.9 m o2.
determine the equilibrium concentration of o2 if kc for the reaction at this temperature is 1.5.
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Ответ:
1.2 M
Explanation:
Let's consider the following reversible reaction.
CuS(s) + O₂(g) ⇌ Cu(s) + SO₂(g)
To find the equilibrium concentration of O₂ we will use an ICE Chart. We will only consider gases and aqueous species since the activity of solids and liquids is 1.
CuS(s) + O₂(g) ⇌ Cu(s) + SO₂(g)
I 2.9 0
C -x +x
E 2.9-x x
The equilibrium constant (Kc) is:
The concentration of O₂ at equilibrium is:
[O₂] = 2.9 -x = 2.9 - 1.7 = 1.2 M
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Explanation: