Given the reaction between two gases represented by A₂ and B₂ to give the compound A B(g) . A₂(g)+B₂(g) 2 A B(g) At equilibrium, the concentration of A₂=3.0 10⁻³ M of B₂=4.2 10⁻³ M of A B=2.8 10⁻³ M If the reaction takes place in a sealed v

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Given the reaction between two gases represented by A₂ and B₂ to give the compound A B(g) . A₂(g)+B₂(g) 2 A B(g) At equilibrium, the concentration of A₂=3.0 10⁻³ M of B₂=4.2 10⁻³ M of A B=2.8 10⁻³ M If the reaction takes place in a sealed vessel at 527^ C , then the value of K_c will be

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Correct answer: C. 0.62

A₂(g)+B₂(g) 2 A B(g) The equilibrium constant is given by aligned K_c= [A B]^2 [A₂ ] [B₂ ] & = (2.8 10⁻³ )^2 (3.0 10⁻³ ) (4.2 10⁻³ ) & = 7.84 12.6 & =0.62 aligned

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