What is the value of the equilibrium constant K for the reaction 2A ⇌ B?

A. [B]/[A]^2
B. [A]^2/[B]
C. [A]/[B]^2
D. [B]^2/[A]

Answer: [B]/[A]^2

Additional Information: The equilibrium constant K is expressed as the ratio of products to reactants, raised to their coefficients.

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