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Both sublimation and what other occur only on the surface of a substance.?
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Can sublimation of a substance be utilized to separate it from other substances?
Yes, it is possible if one of the substance will sublime and others will not.
How does sublimation compare with other changes of state?
Sublimation occur directly from a solid to a gas, jumping over the liquid phase.
Is sublimation absorbing or releasing heat energy?
Sublimation is an endothermic transition from the solid state to the gaseous without passing through the liquid phase so YES, it requires energy. Iodine is one example of a substance that will sublime at normal pressure and so are carbon & arsenic. At a certain temperature and pressure, most substances have what is know as a "triple point". This is where the solid, gas and liquid all occur at the same temperature. It still requires energy to transform one into the other. In other words, if you have a solid, liquid and gas of some substance at the triple point and add energy, some of the solid will become liquid and some of the liquid will become gas but the temperature will remain the same. Substances which sublime at normal pressures (iodine, carbon & arsenic) are at a pressure which is below their triple point. It still requires energy to move from one state to the other.
What is the other name of sublimation?
deposition
What is the meaning of dye sublimation?
Dye sublimation is a printing method that uses heat transference onto plastics and other such media. Sublimation refers to the fact that the dye goes from a solid to a gas without ever becoming a liquid.
Can sublimation of a substance be utilized to separate it from other substances?
Yes, it is possible if one of the substance will sublime and others will not.
How does sublimation compare with other changes of state?
Sublimation occur directly from a solid to a gas, jumping over the liquid phase.
Is sublimation of iodine a physical change?
It is a physical change because no new substance is formed, it is the other form of iodine.
Is alwayes sublimation point higher than melting point?
This question is unanswerable because anything that sublimes won't ever melt. Because sublime = the change from solid to gas, while at no point becoming a liquid. and melting = the process of heating a solid substance to a liquid I would beg to differ. Sublimation depends on other variables as well, i.e. pressure. (lower pressure) Water is a substance that sublimates and melts. It's sublimation point is actually lower than it's melting point (if it were higher the substance would be in it's transition state... defeating the purpose) I don't know nearly enough to tell you anything else, except that in a single substance, it is more likely that the sublimation point is lower.
Is sublimation absorbing or releasing heat energy?
Sublimation is an endothermic transition from the solid state to the gaseous without passing through the liquid phase so YES, it requires energy. Iodine is one example of a substance that will sublime at normal pressure and so are carbon & arsenic. At a certain temperature and pressure, most substances have what is know as a "triple point". This is where the solid, gas and liquid all occur at the same temperature. It still requires energy to transform one into the other. In other words, if you have a solid, liquid and gas of some substance at the triple point and add energy, some of the solid will become liquid and some of the liquid will become gas but the temperature will remain the same. Substances which sublime at normal pressures (iodine, carbon & arsenic) are at a pressure which is below their triple point. It still requires energy to move from one state to the other.
What happens when sublimation takes place?
Sublimation is the change of state of matter from solid directly to gas. Dry ice does this. Deposition is the change of state from gas to solid. This is how frost forms. There are likely more examples of each, but they both skip over the liquid state of matter.
Why did Freud consider sublimation to be preferable to other defense mechanisms?
Because sublimation is the best of all.
What is the other name of sublimation?
deposition
What is the importance of sublimation?
Sublimation can be important during the recovery of compounds that are suspended or dissolved in a fluid or a solid such as dry ice. Sublimation is the transition of a substance from a solid to a gas without passing through the liquid phase.
What term is given to a liquid changing to a gas?
There are two names I think...One is "Deposition"and the other is "sublimation
Change of state of solid to gas?
The process is called sublimation. Solids can turn directly into gases, and gases can turn directly into solid without ever being a liquid. Carbon dioxide (dry ice) is a common example of this. Other examples are mothballs, solid air fresheners (Air Wick), and iodine.
What are the main uses for sublimation ink?
Sublimation ink is a special type of ink used on materials other than that of paper, like plastic or fabrics. The main uses for sublimation ink are to print logos or other images on t-shirts or hats, as well as printing on plastics.
