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Answer 1

Answer:

15. a copper–nickel alloy used in electrical work for its high resistance.

16. a a thick, clear, slightly sticky substance, especially one used in cosmetic or medicinal products.

17. the erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium.

18.the process of settling or being deposited as a sediment.

19. the movement of charged particles in a fluid or gel under the influence of an electric field.

20.the separation of particles in a liquid on the basis of differences in their ability to pass through a membrane.

21.The Tyndall effect is light scattering by particles in a colloid or in a very fine suspension.

22. Electroosmotic flow is the motion of liquid induced by an applied potential across a porous material, capillary tube, membrane, microchannel, or any other fluid conduit.

23. An electrostatic device whereby negatively charged dust or fume particles are attracted to a positively charged wire electrode enclosed in a flue, the walls of which act as the other electrode. Widely used for treating sulfuric acid mist, cement mill dust, power-plant fly ash, metallurgical fumes, etc.

24. the action or process of a liquid, especially blood, changing to a solid or semi-solid state.

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Explanation:

Answer 2

Constanatan :

A copper - nickel alloy used in electrical work for it's high resistance .

Gel :

A gel is a semi - solid that can have properties ranging from soft and weak , hard and tough .

In this way , gels are a dispersion of molecules of a liquid within a solid medium .The word gel is coined by 19th - century Scottish chemist Thomas Graham by clipping from gelatin .

Brownian Movement :

Brownian Movement , or Pedesis , is the random motion of particles suspended in a fluid resulting from their collision with the fast moving molecules in the fluid .

Sedimentation :

The process of setting or being deposited as a sediment .

Electrophoresis :

The movement of charged particles in a fluid or gel under the influence of an electric field .

Dialysis :

Seperation of suspended colloidal particles from dissolved ions or molecules of small dimensions by mean of their unequal rates of diffusion through the pores of semipermeable membranes . This process was first employed in 1861 by a British Chemist , Thomas Graham .

Tyndall Effect :

The visible path of light produced by the scattering action of the particles in a colloidal solution on a beam of light passed through it .

Electro - Osmosis :

It refers to the movement of liquid in a porous material due to an applied electrical field . The phenomenon of Electro - Osmosis is very useful in chemical seperation techniques and buffered solutions . Electro - Osmosis can be used as organic removal .

Use of Cottrell Precipitator :

An electro static device where by negatively charged dust or fume particles are attracted to a positive charged wire electrode enclosed in a flue , in the walls of which act as the electrode .

Widely used for treating sulfuric acid mist , cement mill dust , power - plant fly ash , metallurgical fumes , etc .

Coagulation :

In water treatment , coagulation flocculation involves the addition of compounds that promote the clumping of fines into larger floc so that they can be more easily separated from the water .

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