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Four moles of PCl5 are heated in a closed 4dm3 container to reach equilibrium at 400K. At equilibrium, 50% of PCl5 is dissociated. What is the value of Kc for the dissociation of PCl5 into PCl3 and Cl2 at 400K?
  1. 1
  2. 0.5
  3. 1.25
  4. 0.05

A
0.5
B
1
C
0.05
D
1.25
Solution
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