How Does Osmosis Affect The Concentration Of The Solvent? Essay

1251 WordsOct 29, 20166 Pages
According to the Oxford dictionary of the English language, osmosis is a natural process in which solvent molecules, such as water, tend to pass through a semipermeable membrane –membrane that only allow the passage of the solvent molecules [2]– into a region of greater solute concentration, in order to establish a balanced concentration of the solvent [1]. Figure 1 is a clear representation of how the osmosis process works between a low concentrate solution (pure water) and a higher concentrate solution (salt water). Before adding salt to pure water, the concentration gradient was zero. Imminently after the salt is dissolved in the solvent, salt molecules start to bond with water molecules, therefore the water concentration in the solution decrees. Now, there is a concentration gradient and the molecules of water move from its high chemical potential to lower chemical potential [2]. The osmosis phenomenon was first observed by the French cleric, Abbe Nollet in 1748 [2]. This discovered was followed by centuries of research among specialist in the biological and medical sciences. During these years, the experimental work was conducted with the use of animal and plant tissue as a semipermeable membrane. It was not until 1867, that it was introduced the first inorganic semipermeable membrane, composed of a gelatinous film of copper ferrocyanide [3]. With this new innovation, the osmosis process began to attract the interest of physical chemists, which inquired into the

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