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During which process do ice and snow on Earth move directly from the solid state into water vapor in the atmosphere?
During the process of Sublimation.
When air evaporates and cools?
When air evaporates, it transforms from a liquid to a gas, absorbing heat from its surroundings. As the air cools during this process, its temperature decreases due to the energy required for evaporation. This is why evaporation is a cooling process.
What are the applications of sublimation in chemistry?
Sublimation is the primary process by which dry ice turns into carbon dioxide. This process uses energy from the atmosphere which causes a cooling effect. Many people use dry ice to keep things cold, such as during hunting or fishing trips.
When a substance moves from one state to another what kind of change occurs?
A phase change occurs. This can involve transitions between solid, liquid, and gas states, such as melting, freezing, evaporation, condensation, sublimation, and deposition. During these changes, the particles of the substance reorganize themselves into a different arrangement.
Explain why sublimation is regarded as a physical change but the slaking of lime is considered as a chemical change?
- Sublimation don't change the molecule; solid iodine or sublimated iodine are iodine. - Slaking of lime transform the calcium oxide in calcium hydroxide. A chemical change occur.
What process results in moisture being added to unsaturated air?
Evaporation and Sublimation
What is the purple substance of the iodine after heating?
It is vapour formed during the process of sublimation.
During which process do ice and snow on Earth move directly from the solid state into water vapor in the atmosphere?
During the process of Sublimation.
Is heat energy being added or removed during the process of evaporation?
In condensation heat is removed In evaporation heat is added
During this process hot water changes to steam?
Evaporation
What state is water in during the process of evaporation?
water vapour
What is a sentence using the words condensation distillation and evaporation?
During distillation, the condensation soon turned to evaporation.
How evaporation exhibit the cooling effect?
Evaporation needs heat energy. During the process of evaporation heat is absorbed by the other body thereby cooling it
Does evaporation produce carbon dioxide?
No, evaporation is the process by which a liquid, such as water, changes into a gas, such as water vapor. During evaporation, carbon dioxide is not produced.
Which process in the water cycle is non-existent during a drought?
evaporation
Ice becomes a gas wihtout going through a luquid phase in what process?
This change is called sublimation and occurs in some substances at normal temperature and pressure, one of the best known being, Carbon Dioxide (CO2). In its solid state ("Dry" Ice), normal atmospheric pressure is insufficient to prevent the CO2 molecules from escaping from the surface, thus the solid appears to "evaporate", going directly to the gaseous state without the intervening liquid state. The reverse of this process is called deposition.
What is lost during the process of evaporation?
During the process of evaporation, liquid water is converted into water vapor, which is a gas. This means that the water loses its liquid state but its molecular composition remains unchanged. No molecules are lost during evaporation, only the physical state of the water changes.
