Osmotic pressure

{
  "id": "MLC-T-CHM-008353",
  "term": "Osmotic pressure",
  "field": "Chemistry",
  "definition": "The hydrostatic pressure required to prevent the net flow of solvent molecules across a semipermeable membrane into a solution. This pressure arises from the difference in solute concentration between the two sides of the membrane, driving solvent movement from a region of higher solvent concentration to lower. It is directly proportional to the molar concentration of the solute at a given temperature.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "membrane",
    "mole",
    "osmotic concentration"
  ],
  "references": [
    "Green Book, 2nd ed., p. 51 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "Green Book, 3rd ed., p. 59 (https://doi.org/10.1039/9781847557889)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/osmotic-pressure/"
}