The pressure which a solution of a substance in a liquid exerts on a semipermeable membrane, through which the solvent can diffuse but the dissolved substance (the solute) cannot diffuse, when separated across the membrane from the pure solvent. In general, the osmotic pressure will depend almost proportionally up to certain concentrations upon the molal concentration of the solute.
A chemical force caused by a concentration gradient. It is a colligative property and the principle behind membrane processing.
Osmotic pressure () is the excess pressure necessary to maintain osmotic equilibrium between a solution and the pure solvent separated by a membrane permeable only to the solvent. In an ideal dilute solution Î = c RT where B is the amount-of-substance concentration of the solute, is the molar gas constant, and the temperature.
the increase of hydrostatic water pressure within a cell as a result of water molecules that continue to diffuse inward toward the area of lower water concentration. J K Y Z
the force exerted by the nondiffusible particles in a solution which tends to draw water toward it; the amount of pressure required to prevent osmotic movement across a membrane.
Pressure that must be exerted on the high solute concentration side of a semipermeable membrane to prevent the flow of water across the membrane due to osmosis.
the movement of water across a semipermeable membrane due to the difference between solute concentrations on both sides.
the pressure which is needed to prevent the passage of solvent molecules through a semipermeable membrane which separates the solvent from the solution. Osmotic pressure increases as the concentration of the solution increases.
The pressure exerted by water or other solvents flowing into a solution through a membrane.
Pressure generated by the osmotic flow of water through a membrane into a (aqueous) phase containing a solute in a higher concentration.
The pressure required to prevent solvent from passing through a semipermeable membrane from a region of higher concentration of solute to a region of lower concentration of solute.
Defined as the pressure required to prevent net movement of water across a semipermeable membrane separating the solution from pure water.
The tendency of water to move across a semi-permeable membrane into a solution.
(physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane
The force exerted by proteins to draw tissue fluids into the blood
A pressure exerted in living bodies as a result of unequal concentrations of salts on both sides of a cell wall or membrane. Water will move from the area having the least salt concentration through the membrane into the area having the highest salt concentration and, therefore, exerts additional pressure on this side of the membrane.
The applied pressure required to prevent the flow of solvents of different concentration across a semi-permeable membrane.
The minimum pressure that must be applied to a solution to prevent it from gaining water when it is separated from pure water by a permeable membrane; in honey, its ability to absorb water from the air or other microscopic organisms, about 2000 milliosmols/kg.
The hydrostatic pressure produced on the surface of a semipermable membrane by osmosis.
A measure of the tendency of a solution to take up water when separated from pure water by a selectively permeable membrane. Osteichthyes The vertebrate class of bony fishes, characterized by a skeleton reinforced by calcium phosphate; the most abundant and diverse vertebrates. ostracoderm(os- trak-uh-durm) An extinct agnathan; a fishlike creature encased in an armor of bony plates.
Pressure generated by water moving by osmosis into or out of a cell.
It is the measurement of the potential energy difference between solutions on either side of a semipermeable membrane.
The superficial hydrostatic pressure on a semi-permeable membrane caused by osmosis.
Amount of pressure needed to stop osmosis; the potential pressure of a solution due to the presence of non-diffusable solute particles in solution.
The pressure that builds in a substance as it experiencesosmosis, and eventually stops that process.
Pressure which must be applied to a solution to prevent water from flowing in via a semipermeable membrane.
The pressure created by the tendency of water to flow in osmosis. Every 100 PPM of TDS generates about 1 psi of osmotic pressure. This osmotic pressure must first be overcome by the water pressure for the reverse osmosis membrane to be effective.
The pressure and potential energy difference which exists between two solutions on either side of a semipermeable membrane because of the tendency of water to flow in osmosis.
Osmotic pressure is a phenomenon in which water exerts pressure against a membrane (when it is bordered by solutions of differing concentrations).
Hydrostatic pressure that must be applied to the more concentrated solution to stop the net flow of water across a semipermeable membrane separating solutions of different concentrations. ( Figure 15-30)
Osmotic pressure is the hydrostatic pressure produced by a solution in a space divided by a differentially permeable membrane due to a differential in the concentrations of solute.