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For simple diffusion to occur, a concentration gradient must exist where a substance moves from an area of higher concentration to an area of lower concentration. No external energy is required for osmosis to occur. The coefficient of the x^2 term must be positive is a condition that does not have to be met.
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For diffusion to occur, which condition must be met This membrane allows the passage of solvent molecules (usually water) while preventing the passage of solute molecules A concentration gradient must exist
A hypotonic external environment must exist
A hypertonic external environment must exist The conditions necessary for diffusion is firstly a semi permeable membrane, and a concentration gradient for the movement of molecules from higher concentration to lower concentration. Equilibrium is achieved when concentrations of a substance in two solutions become equal This happens through diffusion, where molecules move from an area of high concentration to an area of low.
No, osmosis can also occur across a semipermeable membrane between a liquid and a gas For example, water vapor can move through a semipermeable membrane to equalize the concentration on either side. In order to do work, two conditions that need to exist are a force must be applied on an object and the object must move in the direction of the applied force.
