If one molecule of the product C is formed from one molecule of the reactant A and one molecule of the reactant B, and the initial concentrations of A and B have a common value [A]=[B]= [math] moles/L, then [C]= [math], where [math] is a constant.

(a) Find the rate of reaction at time [math].
(b) If [math][C], what is [math] in terms of [math] and [math]?
(c) What happens to the concentration as [math]?
(d) What happens to the rate of reaction as [math]?
(What do the results mean in (c) and (d) in practical terms?)