Question

Cyclohexane, C6H12, undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane, CH3C5H9, according to the equation:
C6H12 ⇌ CH3C5H9
If Kc = 0.143 at 25°C for this reaction, find the equilibrium concentrations of C6H12 and CH3C5H9 if the initial concentrations are 0.200 M and 0.050 M, respectively.

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At 100^oC, The equilibrium constant for the reaction:

CF₄(g) + 2H₂O(g) ⇌CO₂(g) + 4HF(g)    is   K_c,1 = 5.9

And the equilibrium constant at 100^oC for the reaction:

CO(g) + ½ O₂(g) ⇌ CO₂(g)                      is   K_c,2 = 1.3

Compute the equilibrium constant at 100^oC for the reaction (2 sig figs)

2 CF₄(g) + 4H₂O(g) ⇌2CO(g) + 8HF(g) + O₂(g)          is K_c,3 = ?

Answer 1