Sublimation and Condensation Notes
** 1. Ascension ** 1. ** definition **: The process of changing a substance from a solid state to a gaseous state is called sublimation. For example, the mothballs would become smaller after a period of time, the purple-red steam would appear when heated up, the moth-proof mothballs in the wardrobe would eventually disappear, the wet clothes could still be dried after freezing in winter, and the tungsten wire would become thinner after using the incandescent lamp for a long time. 2. ** Relationship with Sublimation **: Sublimation is the reverse process of sublimation. 3. ** Energy Change **: The sublimation process is a heat-absorbing process. ** 2. Essence Condensation ** 1. The process of changing a substance from a gaseous state to a solid state is called sublimation. For example, frost and snow (formed by condensation of water vapor), the "rime" on trees in winter, and the "ice flowers" on the inside of windows in winter were all sublimation phenomena. 2. ** Relationship with sublimation **: sublimation is the reverse process of sublimation. 3. [Energy Change: The sublimation process is a heat release process.] While waiting for the TV series, he could also read the exciting content related to this site!
Notes of Sublimation and Condensation
** 1. Ascension ** 1. ** Concepts ** - The process of changing a substance from a solid state to a gaseous state was called sublimation. For example, mothballs would become smaller after a period of time, purple-red steam would appear when heated up, mothballs used for insect control in the wardrobe would gradually become smaller and eventually disappear, wet clothes would dry after freezing in winter, and incandescent lamps would become thinner after being used for a long time. 2. ** Energy Change ** - The sublimation process was a heat-absorbing process. 3. ** Relationship with Essence Condensation ** - Condensation was the reverse process of sublimation. ** 2. Essence Condensation ** 1. ** Concepts ** - The process of changing from a gaseous state to a solid state was called sublimation. For example, frost and snow (formed by condensation of water vapor), the "rime" on trees in winter, and the "ice flowers" on the inside of windows in winter were all sublimation phenomena. 2. ** Energy Change ** - The sublimation process was a heat release process. 3. ** Relationship with Ascension ** - Sublimation was the reverse process of sublimation. ** 3. The relationship between solid, liquid and gas ** - When a solid turned into a liquid, it was melting; when a liquid turned into a solid, it was solidifying; when a liquid turned into a gas, it was vaporizing; when a gas turned into a liquid, it was liquifying; when a solid turned into a gas, it was sublimation; and when a gas turned into a solid, it was sublimation. Melting, vaporizing, and sublimation absorbed heat, while solidifying, vaporizing, and condensing released heat. ** 4. Analysis of the Change of State of Matter in the Instance ** 1. In the water cycle, the water in the rivers, lakes, and seas on the ground constantly vaporized into water vapor under the sunlight. When the flowing water vapor met the cold air, it liquefied into small water droplets or directly condensed into small ice crystals to form clouds. After the small ice crystals melted, they fell together with the small water droplets to form rainwater. 2. The frost on the windows of the classrooms in the northern winter appeared on the inside of the windows. It was a phenomenon of sublimation, which released heat. 3. The stage performance used dry ice to create white fog. First, the dry ice sublimated and absorbed heat, causing the temperature to drop. The water vapor in the air liquefied into small water droplets when it cooled. While waiting for the TV series, he could also read the exciting content related to this site!
People's Education Version Eighth Grade Physics Sublimation and Condensation Notes
Based on context alone Sublimation: - [Description: The process of changing a substance from a solid state to a gaseous state is called sublimation.] For example, frozen clothes in winter would also dry, which was the direct change of ice into water vapor, and the direct change of solid helium into helium vapor. - The sublimation process required the absorption of heat. - In sublimation, solid matter would directly turn into gas without turning into liquid. The distance between molecules would increase, and the movement of molecules would intensify. Ning Hua: - [Description: The process of changing a substance from a gaseous state to a solid state is called sublimation.] For example, frost was formed by the water vapor in the air directly turning into solid ice crystals when it was cold; the ice flowers on the windows in winter were formed by the condensation of indoor water vapor when it was cold. - The sublimation process needed to release heat. - In the sublimation phenomenon, gaseous substances would turn into solid state without going through the liquid state. The distance between the molecules would decrease, and the movement of the molecules would slow down. Sublimation and sublimation were two opposite processes. There were many examples of these two changes in the state of matter in daily life and natural phenomena. Understanding them could help explain many physical phenomena. While waiting for the TV series, he could also read the exciting content related to this site!
Sublimation and Condensation Knowledge Points Diagram
|sublimation| sublimation| |--|--| |definition: The process of a substance changing from a solid state to a gaseous state.| definition: The process of changing a substance from a gaseous state to a solid state.| |[Energy Transfer: Heat Absorption]|[Energy Transfer: Heat Release]| |Common phenomena: the mothballs in the wardrobe become smaller, the clothes become dry when frozen in winter, the sulfur becomes sulfur vapor when heated, the tungsten light bulb becomes thinner, and the dry ice creates stage smoke, etc.| Common phenomena: window grilles on winter glass, rime, frost seen in the morning, etc.| |"Usage: Medical surgery, artificial rainfall (using dry ice sublimation to absorb heat), cooling food in transportation (using dry ice sublimation to absorb heat), etc.| No specific application mentioned| |[Special characteristic of state change: No intermediate process of liquid state.]|[Special characteristic of state change: No intermediate process of liquid state.]| While waiting for the TV series, he could also read the exciting content related to this site!
Ninth grade physics sublimation and sublimation notes
1. ** Ascension ** - ** definition **: The process of changing a substance from a solid state to a gaseous state is called sublimation. This process absorbs heat. - ** Common sublimation substances **: Iodine, ice, dry ice, Camphor, tungsten, etc. - ** Phenomenon examples ** - Frozen Clothes Dry: The ice on winter clothes directly turns into steam. - The snow didn't melt, but turned into gas. - Filament thinning: the tungsten of the lamp directly changes from solid to gas. - The mothball in the closet became smaller, and the solid state of the mothball was directly sublimated. - Dry Ice Sublimation: Solid carbon dioxide sublimates into gaseous carbon dioxide, which can be used for stage smoke effects (dry ice sublimation and cooling, causing the water vapor in the air to condense into small water droplets to form "white fog"), artificial rainfall (dry ice sublimation and cooling, causing the water vapor to condense into small ice crystals when it is cold, and the small ice crystals fall to melt into water droplets to form rain), food storage and medical surgery (sublimation absorbs heat and acts as a cooling effect), etc. - Iodine sublimation: Solid Iodine is directly converted into Iodine vapor. - [Disappearance of Solid Fragrance Agent: Solid Fragrance Agent will change from solid to gas and be released into the air.] 2. ** Essence Condensation ** - [Description: The process of a substance changing from a gaseous state to a solid state is called sublimation. This process releases heat.] - ** Phenomenon examples ** - Ice flowers on windows in winter: When the steam in the room with a high temperature meets the very cold window glass, it will condense into small ice crystals and form ice flowers. - Frost: When the temperature is very low, the water vapor in the air will condense into frost. - Rime: The water vapor in the air will condense on the trees when it gets cold, forming rime. 3. ** The relationship between the change of energy in the change of state of matter ** - Melting, vaporizing, and sublimation were all heat absorbing processes, while solidifying, vaporizing, and sublimation were heat releasing processes. 4. ** The key points of analyzing the change of state of matter ** - When analyzing the phenomenon of state change, one had to understand the initial state and final state of the state change, as well as the conditions in the process of change. For example, when analyzing clothes that were frozen and dried, the initial state was ice (solid), the final state was water vapor (gaseous), the condition was heat absorption, and the change of state was sublimation. While waiting for the TV series, he could also read the exciting content related to this site!
Knowledge of sublimation and sublimation
Sublimation referred to the phase change process of a substance from a solid state to a gas state without going through a liquid state. This process required heat absorption. For example, the mothballs in the closet became smaller, the clothes that were frozen in winter became dry, the sulfur became sulfur vapor when heated, the tungsten light bulb became thinner, and the smoke on the dry ice stage was sublimation. In addition, the sublimation of dry ice could also be used to cool food in transportation and artificial rainfall. Sublimation was the reverse process of sublimation, which was the process of directly turning a substance from a gaseous state into a solid state. Sublimation needed to release heat. Condensation phenomena in life included window grilles on winter glass, rime, frost seen in the morning, black solid tungsten on the wall of a long-used light bulb (condensed from tungsten vapor), ice crystals condensed from indoor water vapor on the window glass in winter nights, and frost formed on popsicles taken out of the refrigerator. There were six kinds of changes in the state of matter. When a solid turned into a liquid, it was melting; when a liquid turned into a solid, it was solidifying; when a liquid turned into a gas, it was vaporizing; when a gas turned into a liquid, it was liquifying; when a solid turned into a gas, it was sublimation; and when a gas turned into a solid, it was sublimation. Melting, vaporizing, and sublimation absorbed heat, while solidifying, vaporizing, and condensing released heat. Moreover, some natural phenomena might involve many changes in the state of matter. While waiting for the TV series, he could also read the exciting content related to this site!
Concepts and examples of sublimation and sublimation
Sublimation referred to the process of changing a substance from a solid state to a gaseous state. This process required the absorption of heat. For example, the mothballs gradually became smaller and finally disappeared, wet clothes could be dried after freezing in winter, the tungsten wire of incandescent lamps became thinner after being used for a long time, and purplish-red sulfur vapor appeared when heating sulfur. Sublimation referred to the process of a substance changing from a gaseous state to a solid state. This process would release heat. For example, frost and snow (formed by condensation of water vapor), the "rime" on trees in winter, and the "ice flowers" on the inside of windows in winter were all sublimation phenomena. While waiting for the TV series, he could also read the exciting content related to this site!
Phenomenon and application of sublimation and sublimation
1. ** Phenomenon of sublimation ** - [Description: The phenomenon of a substance changing from a solid state to a gaseous state is called sublimation.] - Common phenomenon: - When heating the iodines, purplish-red iodines vapor could be seen. - The mothflake used to prevent insects in the wardrobe would slowly shrink until it disappeared. - The frozen clothes dried up, and the ice directly turned into steam without going through the liquid process. - The snow didn't melt, but it became smaller. The solid snow directly turned into gas. - The tungsten of the lamp became thinner, and the tungsten of the lamp turned from solid to gas. - The solid fragrance disappeared, and the solid fragrance turned into gas. - The dry ice sublimated, and the solid carbon dioxide directly turned into gaseous carbon dioxide. - Sublimation conditions: Generally, at any temperature, sublimation will occur on the surface of any solid. 2. ** Condensation Phenomenon ** - [Description: The phenomenon of a substance changing from a gaseous state to a solid state is called sublimation.] - Common phenomenon: - In winter, beautiful ice flowers would appear on the glass. This was because the indoor temperature was higher than the outdoor temperature. The water vapor in the air would condense into small ice crystals attached to the inner surface of the glass when it met the very cold glass. - The formation of frost was the condensation of water vapor in the air when it cooled. - Rime was also formed by the condensation of water vapor in the air. - The light bulb would turn black after a long time because the tungsten vapor would condense on the inner wall of the light bulb when it was cold. - Sublimation conditions: The vapor of the substance must reach a certain concentration and the temperature must drop below the freezing point of the substance to occur. 3. ** The application of sublimation and sublimation ** - ** Sublimation Heat Absorption Technique **: - Artificial rainfall: First, the sublimation and cooling of dry ice; second, the condensation of water vapor into small ice crystals; third, the melting of small ice crystals into small water droplets when they fall and meet the hot airflow. The small water droplets become bigger and bigger, and the water droplets fall to the ground to form rain. - Stage Smoke: The dry ice powder is sprayed onto the stage and quickly sublimates and lowers the temperature, causing the water vapor in the air to condense into small water droplets to create a "white fog" to enhance the atmosphere. - [Food Storage, Medical Surgery: Solid carbon dioxide can be directly sublimated into gaseous carbon dioxide. At the same time, it absorbs a large amount of heat without leaving any residue.] Using this characteristic, it could be used as a strong cryogen, used to store food, or used in medical research. In modern medicine,"cryotherpy" was to place dry ice (solid carbon dioxide) on some tissues and use the dry ice to sublimate and absorb heat to quickly cool down, causing the tissues to be necrotic. - The sublimation heat release did not directly mention special large-scale applications, but it reflected its principle in the formation of some natural phenomena, such as the formation of frost, ice flowers, and rime. - Sublimation absorbs heat and has a cooling effect, while sublimation emits heat. Sublimation and sublimation are the opposite processes. When analyzing the phenomenon of state change, one had to understand the initial state and final state of the state change, as well as the conditions in the process of change. While waiting for the TV series, he could also read the exciting content related to this site!
The meaning of condensation
"Condensation" mainly had the following meanings: First, it referred to the change of gas into liquid or liquid into solid, such as "condensation","solidifying","freezing", etc.; Second, it meant gathering and concentration, such as "condensation" and "concentration". In ancient Chinese,"condensation" had the original meaning of freezing. From the perspective of the word "understanding", it was composed of water and "suspicion"."Suspicion" had the meaning of stopping, and it could also mean as hard as ice. In addition,"condensation" could also mean watching and paying attention, such as" Ningmu" and" Ningdi". In terms of naming, it had the meaning of dignified and unhurried behavior, which was in line with the girl's temperament. It could refer to steadiness, solemnity, steadiness, etc. The original novel of the TV series " Mo Ran " was Xixing's " Famous Doctor." The original plot was equally exciting. You can click on the link below to read the original novel.
Is sublimation a compliment?
Sublimation had many meanings. When it was used to describe the phase change process of a substance from a solid state to a gas state without going through a liquid state, there was no distinction between praise and criticism. When it was used to describe the refinement and improvement of certain things, such as the sublimation of the realm of thought, the sublimation of art, and the psychological reaction of expressing the psychological depression after frustration in a direction that was in line with social norms and had a constructive meaning, it was a praiseworthy term. When it was used to describe the meaning of the promotion of officials, it could also be regarded as a praiseworthy term. While waiting for the TV series, he could also read the exciting content related to this site!
End of sublimation
Sublimation ending was a writing technique used at the end of the article, from one to another, from phenomenon to law, from personal experience to philosophical understanding, so that the ideology of the article could be expanded and expressed a deeper and higher level of meaning. For example, at the end of Mo Huaiqi's " Walking "," Although my mother was tall, she was very thin, so she was naturally not heavy. Although my son was very fat, he was still young, so he was naturally light. However, my wife and I walked slowly, steadily, and carefully, as if what was on my back and what was on her back added together was the whole world." From the usual action of carrying people to the sense of responsibility and mission in the life chain of a middle-aged man, the level of the article was elevated. Using this kind of ending method required the author to have a certain level of thinking and understanding. He could not only rely on life experience, but also pay attention to the improvement of his mental state. If the mental state was not high enough, it would be difficult to achieve the desired effect of expression by writing skills alone. In addition, sublimation could not only be used at the end, but also to conceive the entire article. For example, Franklin's Whistles expanded and deepened from his personal experience of buying a whistle at a high price. He compared unnecessary or wrong things in life to whistles, including fame, property, pleasure, vanity, etc., revealing that people suffered because of these high prices. This idea could be seen as an upgraded version of sublimation. In the examination essay, there were also lyrical sublimation endings, which aroused the readers 'emotional resonance and highlighted the central theme by expressing their thoughts directly or indirectly. There were also methods like summary sublimation, which summarized the content and sublimated the cognition at the end to increase the readers' sense of identity. While waiting for the TV series, he could also read the exciting content related to this site!