In salinity experiments, from 2.5 to 9 minutes the zone of mixing should be gradually become thicker, you may not be able to observe it, what process causing this slow mixing?
The slow mixing of the zone in salinity experiments from 2.5 to 9 minutes is likely caused by diffusion. Diffusion is the process by which particles move from an area of high concentration to an area of low concentration, resulting in the gradual spreading out of the salinity gradient. This process is often too slow to observe directly, especially in the short time frame of the experiment.
