Reputation: 1571. E-filed in Early February and it took about 7 weeks to get my refund. It might have something to do with the amount as well. I got back $1,500 from the state which is probably more than most people get, so it could have taken longer for the larger payment.
Diffusion and Osmosis. Diffusion. -the process by which molecules spread from areas of high concentration, to areas of low concentration. Concentration gradient - a difference between concentrations in a space. Molecules will always move down the concentration gradient, toward areas of lesser concentration.
Diffusion diffusion: The movement of particles (molecules or ions) from an area of higher concentration to an area of lower concentration is a process in which material spreads throughout a liquid or a gas.smosis is the movement of water from a high water concentration to a low water concentration through a partially permeable membrane. Plants absorb water from the soil by osmosis through their root hair cells.