Osmotic pressure: Difference between revisions
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Osmotic pressure - is the difference in pressure between two solutions that prevent fluid flow through semi-permeable membrane <ref>Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.</ref>. | Osmotic pressure - is the difference in the pressure between two solutions that prevent fluid flow through semi-permeable membrane <ref>Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.</ref>. | ||
Osmotic pressure occurs when two solutions | Osmotic pressure occurs when two solutions separated by semipermeable membrane have different concentrations of solutes. According to a rule of [[Osmosis|osmosis]], fluid moves from an area of low concentration of solutes to an area of high concentration <ref>Kent, M. (2000) Advanced Biology. Oxford: Oxford University Press.</ref>. | ||
Osmotic pressure can be calculated using the following formula <ref>Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.</ref>: | Osmotic pressure can be calculated using the following formula <ref>Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.</ref>: | ||
{| | {| cellspacing="1" cellpadding="1" width="200" border="1" | ||
|- | |- | ||
| <span style="line-height: | | <span style="line-height: 19px"> ∏ = nRT/V = MMRT</span> | ||
|} | |} | ||
Where: | Where: | ||
*n - the number of moles of solute present | *n - the number of moles of solute present | ||
*R - ideal gas constant | *R - ideal gas constant | ||
*T - temperature in Kelvin | *T - temperature in Kelvin | ||
*V - volume of the solution | *V - volume of the solution | ||
*MM - molar mass of the solute<br> | *MM - molar mass of the solute<br> | ||
=== References === | === References === | ||
<references /><br> | <references /><br> | ||
<br> | === <br> === | ||
Latest revision as of 13:59, 19 October 2016
Osmotic pressure - is the difference in the pressure between two solutions that prevent fluid flow through semi-permeable membrane [1].
Osmotic pressure occurs when two solutions separated by semipermeable membrane have different concentrations of solutes. According to a rule of osmosis, fluid moves from an area of low concentration of solutes to an area of high concentration [2].
Osmotic pressure can be calculated using the following formula [3]:
| ∏ = nRT/V = MMRT |
Where:
- n - the number of moles of solute present
- R - ideal gas constant
- T - temperature in Kelvin
- V - volume of the solution
- MM - molar mass of the solute
References
- ↑ Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.
- ↑ Kent, M. (2000) Advanced Biology. Oxford: Oxford University Press.
- ↑ Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.