# Problem: Is the rate of disappearance of reactants always the same as the rate of appearance of products?

###### FREE Expert Solution

We’re being asked to calculate the to determine if the rate of disappearance of reactants always the same as the rate of appearance of products.

Recall that the average rate of a reaction is given by:

$\overline{){\mathbf{Rate}}{\mathbf{=}}\frac{\mathbf{∆}\mathbf{\left[}\mathbf{A}\mathbf{\right]}}{\mathbf{∆}\mathbf{time}}}$

where Δ[A] = change in concentration of reactants or products (in mol/L or M) and Δtime = change in time

###### Problem Details

Is the rate of disappearance of reactants always the same as the rate of appearance of products?