Question about equality of concentrations

[Danielle_Cho_3A]

What happens if we have an equation like A + B <-> C and we are given that initial concentrations of A and C are 1 M and B is 0 M. Then at equilibrium, would there not be equal concentrations of A and B?

[Caleb Kim 1K]

You would most likely not have equal concentrations of A and C at equilibrium. Since the equation is A + C <--> B, and you are given the concentration of A and B, you would do an ice table adding concentration to the reactant side of A and C and subtracting concentration from the product side of B, since C can't have a negative concentration value.

[Yiyi Chen 1D]

During the reaction, the concentrations would change according to Le Chatelier's principle, so C would increase since we start out with none of it, and subsequently A would decrease or B would increase. It's unlikely that there would be equal concentrations of A and B at equilibrium.