单词	osmotic pressure
释义	osmotic pressure /ɒzˈmɒtɪk / noun Chemistry The pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution.The driving force for the osmotic pressure is the higher concentration of sodium ions in the beads than in the outside water.... If a U-shaped glass tube were divided in two by a semipermeable membrane and filled with two solutions the osmotic pressure could be shown. The glucose osmotic pressure in solution with water is proportional to the glucose concentration in the outer solution.
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