The equilibrium constant is 0.090 at a particular temperature for the reaction:

Question

The equilibrium constant is 0.090 at a particular temperature for the reaction:

H2O(g) + Cl2O(g) <=> 2HOCl(g)

Use this information to decide what will happen, given the following sets of initial conditions: Will the reaction shift to the left, to the right or will the system be at equilibrium?

Options: Left, Right, or Equilibrium

a) PH2O = 402 torr, PCl2O = 14.1 torr, PHOCl = 22.6 torr

b) PH2O = 210 torr,PCl2O = 45 torr, PHOCl = 21.6 torr

c) A 3.0 L flask contains 1.11 mol H2O, 0.081 mol Cl2O and 0.09 mol HOCl.

d) A 2.0 L flask contains 0.55 mol H2O, 0.0009 mol Cl2O and 0.26 mol HOCl.

Explanation / Answer

Equilibrium reaction: H2O(g) + Cl2O(g) <---> 2HOCl(g)

Kp = P(HOCl)^2 / P(H2O) x P(Cl2O)

"The equilibrium constant is 0.090 at 25

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