Thus, you would expect to get little or no osmosis and therefore little or no change in weight of the egg. Thus, there is a gradient for water to move into the egg. Accordingly, the weight of this egg should increase over time. As concentration of solute increases, the number of molecular collisions per unit time increases, which leads to a greater rate of solute dispersion away from the concentrated region. Accordingly, in comparing the rate of diffusion for different concentrations of solute, the rates should have increased as the concentration of solute increased.
Temperature is a measure of the rate of molecular movement.
Increasing the temperature of a solution would increase the frequency of collisions, so the rate of diffusion would increase. The heavier the molecule the slower it moves, so a solute's molecular weight is inversely proportional to its rate of diffusion. Hydrostatic pressure is the force exerted against a surface by a volume of water. The magnitude is directly proportional to the volume of water, so the larger funnel would have the largest hydrostatic pressure. As the water and solute are filtered, the volume in the funnel decreases over time.