Question

In the process of diffusion, when sugar is mixed with water, equilibrium would be reached

Answer 1

The dissolved sugar molecules is distributed evenly all over the solution. 
The equilibrium is reached through diffusion. Diffusion is the net movement of molecules and atoms from a high concentration to area of lower concentration. This is considered as the result of the movement of molecules. Diffusion is driven by a gradient until the molecules are distributed randomly and uniformly all throughout the solution. This can be manifested by perfume sprayed in the air, dye dropped in a water. The distinguishing features of diffusion is that particle move randomly and in uniform pattern.

Answer 2

the dissolved sugar molecules are evenly distributed throughout the solution.