Osmotic pressure
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Osmotic pressure by Alexander Findlay

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Published by Longmans, Green and co. in London, New York [etc.] .
Written in English


  • Osmosis.

Book details:

Edition Notes

Statementby Alexander Findlay.
SeriesMonographs on inorganic and physical chemistry
LC ClassificationsQD543 .F47 1919
The Physical Object
Paginationxi, 116 p.
Number of Pages116
ID Numbers
Open LibraryOL235734M
LC Control Numberagr19000589

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A solution does not, in itself, have any osmotic pressure; and the term is used, in a somewhat loose manner certainly, to denote the hydrostatic or mechanical pressure which would be produced if the solution were separated from tht pure solvent by a membrane or septum which is . Sep 25,  · Key Terms. turgidity: Turgidity (turgor pressure) pushes the plasma membrane against the cell wall of plant, bacteria, and fungi cells as well as those protiat cells which have cell walls.; Osmotic pressure is the pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane. Osmotic pressure is a property intrinsic to the solution and is measured at equilibrium, when the pressure-driven flow exactly balances the osmotic-driven flow. By defining osmotic pressure in this way, we assign a positive value to an apparent reduction in pressure brought about by dissolving the solute. In this section, we examine two types of transport phenomena that, at first glance, may seem unrelated: the regulation of cell volume in both plant and animal cells, and the bulk flow of water (the movement of water containing dissolved solutes) across one or more layers of cells. In humans, for example, water moves from the blood filtrate that will form urine across a layer of epithelial Cited by: 1.

Osmotic Pressure Is a Property of Solutions Related to Other Colligative Properties. Osmotic pressure is closely related to some other properties of solutions, the colligative properties. These include the freezing point depression, the boiling point elevation, and the vapor pressure depression, all caused by dissolving solutes in a solution. Aug 24,  · The pressure required to achieve osmotic equilibrium is known as the osmotic pressure. Note that the osmotic pressure is the pressure required to stop osmosis, not to sustain it. Osmotic pressure is the pressure required to stop osmotic flow It is common usage to say that a solution “has” an osmotic pressure of "x atmospheres". The osmotic pressure is then the pressure exerted by the column of a solution of height h where ρ is the density of the solution and g is the gravitational acceleration. \[\Pi = \rho gh\] Figure \(\PageIndex{2}\) An osmometer measures osmotic flow by determining the pressure needed to just stop osmosis. In this set up, a solution is placed. Jun 15,  · Osmotic pressure is the main cause of support in many plants. When a plant cell is in a hypotonic environment, the osmotic entry of water raises the turgor pressure exerted against the cell wall until the pressure prevents more water from coming into the .

pressure on it, that stops the fl ow, is called the osmotic pressure. The thermal movement of a solute molecule within a sol vent is over damped by the solvent molecules that surround it. It is referred to as colloid osmotic pressure (or sometimes as the oncotic pressure). In plasma, the oncotic pressure is only about % of the total osmotic pressure. This may be a small percent but because colloids cannot cross the capillary membrane easily, oncotic pressure is extremely important in transcapillary fluid dynamics. Cite as: happylifekennel.comdium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford. Jan 18,  · Osmotic pressure and tonicity often are confusing to people. Both are scientific terms pertaining to pressure. Osmotic pressure is the pressure of a solution against a semipermeable membrane to prevent water from flowing inward across the .