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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 condacation and sublimation a type of evapazation?
Condensation is the process of a substance changing from a gas to a liquid, whereas sublimation is the process of a substance changing directly from a solid to a gas. Evaporation, on the other hand, is the process of a liquid changing into a gas. While all three involve phase changes, condensation and sublimation are not considered types of evaporation.
What is the other name of sublimation?
Another name for sublimation is phase transition.
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.
Does sublimation and boiling both happen at the surface of the substance?
Sublimation occurs when a solid changes directly into a gas without passing through the liquid phase, and it typically happens at the surface of the substance. Boiling, on the other hand, is the process where a liquid changes into a gas throughout the entire volume of the liquid.
Do Sublimation and boiling both happen at the surface of the substance.?
Sublimation occurs when a solid transitions directly to a gas without passing through the liquid phase, typically at the surface of the solid. Boiling, on the other hand, occurs when a liquid transitions to a gas throughout the bulk of the liquid, not just at the surface.
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?
Yes, the sublimation of iodine is a physical change. Sublimation is the process by which a substance transitions directly from a solid to a gas without passing through the liquid phase, and the chemical composition of the substance remains the same.
What is the other name of sumblination?
The other name for sublimation is "sublimation of a substance." In the context of phase transitions, sublimation refers to the process where a solid transforms directly into a gas without passing through the liquid phase. This term is commonly used in chemistry and physics.
Is condacation and sublimation a type of evapazation?
Condensation is the process of a substance changing from a gas to a liquid, whereas sublimation is the process of a substance changing directly from a solid to a gas. Evaporation, on the other hand, is the process of a liquid changing into a gas. While all three involve phase changes, condensation and sublimation are not considered types of evaporation.
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.
What is the change of a substance from a solid directly 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 is the other name of sublimation?
Another name for sublimation is phase transition.
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.
