Explain the two solids and a solvent - phase diagram, Chemistry

Assignment Help:

Explain the Two solids and a solvent - Phase Diagram?

The phase diagram in Figure on the next page is for a ternary system of water and two salts with an ion in common. There is a one-phase area for solution, labeled sln; a pair of two-phase areas in which the phases are a single solid salt and the saturated solution; and a triangular three-phase area. The upper vertex of the three-phase area, the eutonic point, represents the composition of solution saturated with respect to both salts. Some representative tie lines are drawn in the two-phase areas.

1810_Two solids and a solvent.png

Figure: Ternary phase diagram for NaCl, KCl, and water at 25 C and 1 bar. The dashed lines are tie lines in the two-phase areas.

A system of three components and three phases has two degrees of freedom; at fixed values of T and p, each phase must have a fixed composition. The fixed compositions of the phases that are present when the system point falls in the three-phase area are the compositions at the three vertices of the inner triangle: solid NaCl, solid KCl, and solution of the eutonic composition xNaCl = 0.20 and xKCl = 0.11. From the position of the curved boundary that separates the one-phase solution area from the two-phase area for solution and solid KCl, we can see that adding NaCl to the saturated solution of KCl decreases the mole fraction of KCl in the saturated solution. Al- though it is not obvious in the phase diagram, adding KCl to a saturated solution of NaCl decreases the mole fraction of NaCl.


Related Discussions:- Explain the two solids and a solvent - phase diagram

The radius of first bohr''s orbit for hydrogen, The radius of first Bohr's ...

The radius of first Bohr's orbit for hydrogen is 0.53 Å. The radius of third Bohr's orbit would be: (1) 0.79 Å              (2) 1.59 Å      (3) 3.18 Å      (4)4.77 Å

Explain about sulphuric acid, Q. Explain about Sulphuric Acid? Sulphuri...

Q. Explain about Sulphuric Acid? Sulphuric acid is one of the most important chemicals, both in industry as well as in the laboratory. Two methods are industrially used for

Tetracyclines - drugs and medicines, Tetracyclines: The tetracyclines ...

Tetracyclines: The tetracyclines consist of hydronapht-hacene skeleton like the characteristic structural unit. The structures of tetracycline are specified as follows,

Carbon is present as graphite in white cast iron , Cast iron is iron or a f...

Cast iron is iron or a ferrous alloy which has been heated until it liquefies, and is then poured into a mould to solidify. It is usually made from pig iron. The alloy constituents

Which monomers can undergo free radical, Which monomers can undergo free ra...

Which monomers can undergo free radical, cationic as well as anionic polymerisation with equal ease? CH2=CH2

Determine the acid value and free fatty acids, Q. Determine the acid value ...

Q. Determine the acid value and free fatty acids? This activity will help you to: • know the acidity in given sample of fat/oil, and • determine the free fatty acid com

Explain the use radioactive nuclides, Q. Explain the use Radioactive Nuclid...

Q. Explain the use Radioactive Nuclides? Ans. Radioactive elements are easily found because they emit radiation. They can be used as tracers to show what is happening in

Maximum effluent bod permissible, A township of 25,000 inhabitants is to di...

A township of 25,000 inhabitants is to discharge treated domestic sewage to the neighboring stream which has a least flow of 0.25 m3/s and a 5-day BOD of 3 mg/L. Water consumption

Filter, Filter A plant pot with a plug of cotton wool in the bottom and...

Filter A plant pot with a plug of cotton wool in the bottom and a layer of sand little inches deep makes a satisfactory filter for more purposes

Normal functioning of blood, Q. Normal functioning of blood? The sixth ...

Q. Normal functioning of blood? The sixth position marked by X is either occupied by H 2 0 or 0 2 molecules. Impotant thing to note is that Fe 2+ in hemoglobin does not get o

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