For the Reaction H₂(g)+ Br₂(g) 2HBr(g),K_c = 81

question 53

Multiple Choice

For the reaction H₂(g) + Br₂(g) 2HBr(g) ,K_c = 81.4 at 385ºC.If [H₂] = [Br₂] = [HBr] = 2.4 × 10^-4M at 385ºC,which one of the following is correct?

• A)[H₂] and [HBr] decrease as the system moves toward equilibrium.
• B)The system is at equilibrium.
• C)[H₂] and [Br₂] increase as the system approaches equilibrium.
• D)[HBr] increases as the system approaches equilibrium.
• E)[HBr] and [Br₂] increases as the system approaches equilibrium.

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