The equilibrium constant, Keq for the reaction, given the data from the question is 0.084
What is equilibrium constant?
The equilibrium constant, Keq for a reaction is the ratio of the concentration of the products raised to their coefficients to the ratio of the concentration of the reactants raised to their coefficients. For example, the equilibrium constant for the reaction nA + mB <=> eC can be obtained as follow
Keq = [C]^e / [A]^n × [B]^m
How to determine the equilibrium constant for the reaction
- Equation: 40 KJ + 2SO₃ <=> 2SO₂ + O₂
- [SO₃] = 0.491 M
- [SO₂] = 0.17 M
- [O₂] = 0.701 M
- Equilibrium constant (Keq) =?
The equilibrium constant, Keq for the above reaction can be obtained as illustrated below:
Keq = [SO₂]^2 × [O₂] / [SO₃]^2
Keq = (0.17)^2 × (0.701) / (0.491)^2
Keq = 0.084
Thus, the equilibrium constant, Keq for the reaction is 0.084
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