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What is called the reappearance of excess dissolved substance from the solution on cooling?
Wiki User
∙ 9y ago
Crystallysation,solution,filtrate,solvent
Wiki User
∙ 9y ago
Anonymous
Crystallation
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What is the substance that absorbs and releases heat in a cooling system?
A refrigerant is a substance that absorbs and releases heat in cooling systems.
Is a Solution that holds more solute than it normally would be saturated solution?
No, if it holds MORE than it should it is supersaturated.The term supersaturation refers to a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances.Saturation is the point at which a solution of a substance can dissolve no more of that substance (under normal circumstances) and additional amounts of it will appear as a precipitate.
What are two physical changes that cooling a hot substance may result in?
The substance could liquefy or solidify. Cooling a gas: change from the gas phase to the liquid phase Cooling a liquid: change from the liquid phase to the solid phase
Can you make solids dissolve faster by cooling the solution?
No.
Why is it necessary to filter the solution while its hot?
If you have a solution, you have a solute (usually a solid) dissolved in a solvent. When you cool the solution, you increase the odds of the solute reassociating, thus forming solid crystals that you can then filter out to recover the product.
What is the difference between solution and concentrared solution?
A solution is a solute dissolved in a solvent. A concentrated solution is all the solute that be dissolved in a solvent at normal temperature. A super-concentrated solution is all the solute that can be dissolved in a solution after mixing in the solute during high temperature / pressure. The concentration after cooling to normal temperature / pressure is greater than a regular concentrated solution.
How you can prepare colliodal solution from true solution?
On excessive cooling may produce colloidal particles from true solution or a reaction with another substance may produce such solution.
What term describes a solution that contains the maximum amount of soluteit can hold?
A solution that has the maximum amount of solute dissolved at that temperature is known as a saturated solution.However it is possible to prepare a super saturated solution by heating the solution slightly, dissolving the maximum amount of solute and then carefully cooling the solution. Generally the super saturated solution is unstable and the excess solute will precipitate out if given the energy to do so.A common super saturated solution is a sugar solution. Sugar is added to water and the solution is heated and then carefully cooled. The solution can form a glass like solid called "toffee" rather than crystals of sugar.
How are colored impurities removed from crystals?
The decolourization of undesirable colors is carried out by boiling the substance with sufficient amount of powdered animal charcoal in solution hot solution filtered in this way charcoal absorbs the undesirable colors. the pure decolourization substance crystals on cooling
What are two main ways that mineral form?
when water evaporates, as in a dry climate, ions that are left behind can come together to form crystals like the halite crystals. Or if too much of a substance is dissolved in water, ions can come together and crystals of that substance can begin to for in the solution.
What is crystallisation of salts?
When there is no more solute can be dissolved in a solution, a saturated solution is obtained. When a hot saturation solution is cooled down the solute will come out in solid form as a crystal. Small crystals will be found in fast cooling. If we hang a small crystal in a h ot saturated solution it will grow bigger when it cools slowly. When there is no more solute can be dissolved in a solution, a saturated solution is obtained. When a hot saturation solution is cooled down the solute will come out in solid form as a crystal. Small crystals will be found in fast cooling. If we hang a small crystal in a h ot saturated solution it will grow bigger when it cools slowly.
What is the substance that absorbs and releases heat in a cooling system?
A refrigerant is a substance that absorbs and releases heat in cooling systems.
What is the difference between exsolution and twinning?
twinning occur cause of growth of two crystal in same plane, in twinning we have just one substance, but ex-solution occur cause of cooling and here we have two substance. m.piroui@gmail.com
Is a Solution that holds more solute than it normally would be saturated solution?
No, if it holds MORE than it should it is supersaturated.The term supersaturation refers to a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances.Saturation is the point at which a solution of a substance can dissolve no more of that substance (under normal circumstances) and additional amounts of it will appear as a precipitate.
What is the surface cooling that results when a substance evaporates?
surface cooling occours when a substance evaporates after taking sufficient heat from the body itself intended to be cooled, creates a sensation of cooling on the body. But in air conditioning the surface cooling, is one of the method of cooling, having different explanation.
What are two physical changes that cooling a hot substance may result in?
The substance could liquefy or solidify. Cooling a gas: change from the gas phase to the liquid phase Cooling a liquid: change from the liquid phase to the solid phase
Which component will always have a cooling solution in place?
Processor
