Osmotic pressure, Chemistry

Assignment Help:

Osmotic pressure:

Osmosis process is the movement of a solvent from a solution of lower solute concentration (higher solvent concentration) to one of the higher solute concentration (lower solvent concentration). In osmotic pressure measurements a semi-permeable membrane. It is permeable only to solvent (as it have holes that are small enough to prevent large solute molecules passing through) separates two liquids. This means that this technique is used for relatively large molecules, often polymers or biological macromolecules. Typically, one liquid is pure water and the other is the solute solutions of interest. This produces a flow of water from the solvent to the solute solutions. The experimental apparatus (Fig. 1) incorporates one for each liquid, two identical vertical columns, and the height of the liquid in the solution columns increase relative to that in the pure solvent column due to this net flow.

 

2065_osmotic pressure.png

Fig.1. Schematic diagram of the apparatus for measuring osmotic pressure. (a) Apparatus at the start of the measurement; (b) apparatus at equilibrium


Related Discussions:- Osmotic pressure

Expansion work, write the expression for the expansion work?

write the expression for the expansion work?

Molecar symetry, Explain significance of orthogonality rule

Explain significance of orthogonality rule

Thermodynamics and first law of thermodynamics, Thermodynamics Thermody...

Thermodynamics Thermodynamics is a macroscopic science and its most fundamental level is the study of two physical energy, entropy and quantities. Energy may be regarded as the

Explain about hydrogen sulphide, Q. Explain about Hydrogen Sulphide? Hy...

Q. Explain about Hydrogen Sulphide? Hydrogen sulphide is the only thermodynamically stable sulphane. It is a foul smelling and poisonous gas. H 2 S is prepared in the labora

P block, why ionisation energy of aluminium is greater then Ga?

why ionisation energy of aluminium is greater then Ga?

P-orbitals of an atom in presence of magnetic, p-orbitals of an atom in pre...

p-orbitals of an atom in presence of magnetic field are: (1)  Two fold degenerate (2) Non degenerate (3) Three fold degenerate (4) None of these Ans: Non degenerate

Organic chemistry, What are the theoretical physical properties of esters?

What are the theoretical physical properties of esters?

Carbonyl compounds, which compound has sharp, unpleasant and pungent smell?...

which compound has sharp, unpleasant and pungent smell?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd