Osmotic pressure: Difference between revisions

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<u>Osmotic pressure</u> - is the difference in pressure between two solutions that prevent fluid flow through semi-permeable membrane (Alberts, 2002).&nbsp;  
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>.&nbsp;  


Osmotic pressure occurs when two solutions, separated by semipermeable membrane, have different concentrations of solutes, accordind to a rule of osmosis, fluid moves from the area of low concentration of solutes to an area of high concentration (Kent, 2000).&nbsp;  
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>.&nbsp;  


Osmotic pressure can be calculated using the following formula (Alberts, 2002):  
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>:  


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| <span style="line-height: 19.9200000762939px;">&nbsp; &nbsp; &nbsp; &nbsp; ∏ = nRT/V = MMRT</span>
| <span style="line-height: 19px">&nbsp; &nbsp; &nbsp; &nbsp; ∏ = nRT/V = MMRT</span>
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Where:  
Where:  


n - the number of moles of solute present  
*n - the number of moles of solute present  
*R - ideal gas constant&nbsp;
*T - temperature in Kelvin
*V - volume of the solution
*MM - molar mass of the solute<br>


R - ideal gas constant&nbsp;
=== References  ===


T - temperature in Kelvin
<references /><br>


V - volume of the solution
=== <br> ===
 
MM - molar mass of the solute
 
<br>  
 
<br>
 
<br>
 
<br>
 
<br>
 
<br>
 
<br>
 
References:
 
Alberts B, Johnson A, Lewis J, et al. (2002) ''Molecular Biology of the Cell''. 4th edition. New York: Garland Science.
 
<span style="line-height: 19.9200000762939px;">Kent, M. (2000)&nbsp;</span>''Advanced Biology.&nbsp;''<span style="line-height: 19.9200000762939px;">Oxford:&nbsp;Oxford University Press.</span>

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

  1. ↑ Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.
  2. ↑ Kent, M. (2000) Advanced Biology. Oxford: Oxford University Press.
  3. ↑ Alberts B, Johnson A, Lewis J, et al. (2002) Molecular Biology of the Cell. 4th edition. New York: Garland Science.



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