What is called the spread of water

What is called the spread of water


  • 1 process of the spread of water
  • 2 measuring osmotic
  • 3 application of gas law
  • 4 Examples of osmosis process

The process of the spread of water

Called the process of the spread of water-osmosis or solutions or osmosis or proliferation, which is a movement of water molecules through the membrane half into force, so that moves water from the high water density area to a lower area density, so that the water does not consume any energy, the so-called membrane solvent, note that only allowed to influence water without other Alzuib, and this in turn leads to a pressure gradient through the membrane.

Here is bringing the tube is made of glass Pferaan, shaped the U, separated by a membrane half into force, so that it fills the left pane and the left solution dissolved in which amounts of water evenly, and wait for a certain period of time, where the ratio of water drops in the left pane and rises in by contrast Baloasr, so that the water becomes free of salt; To accumulate in a particular part, and the water continues to move from one part to another, so that it becomes a steady rise in both sides, called the teams rise in the water and the solution pressure or osmotic pressure osmosis.

Measuring osmotic

The osmotic methods used in the field of biological sciences, fundamental in measuring the extent of the water, and are used specifically in cases of work that live specifically cells include interactions unwanted when they are under the influence of the so-called stress osmotic, for when they are separated protoplast may be torn apart as a result of increasing the concentration of solution, and that it is installed and measured by comparing the appropriate values.

Application of gas law

A set of cases where the gas laws specifically apply to the ideal on this property, as the law Boyle and Avogadro, in addition to Jay-Lussac law, upon which is osmotic pressure proportional to be proportional with the concentration of molar substances dissolved, as well as the temperature of absolute, and in the solutions pressure osmotic depends on a set of specific particles dissolved, and in general of osmotic pressure of a solution consisting of one mole of material dissolved in twenty-two liters of solvent, about a hundred and one kPa, at a temperature of about two hundred and seventy-three Kelvin.

Examples of osmosis process

This phenomenon can be observed in many natural processes, most notably the following:

  • Water transmission in the cells of living organisms such as plants and human cells, hemoglobin and others.
  • Various purification processes in order to separate materials.
  • Medically in the dialysis process, which is intended to infected blood from urine purification surplus, specifically those who suffer from significant deficiencies in the kidney's ability to perform its function.


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