The particles in liquid water are in some degree of motion. When heated to vapor, the particles move far apart from each other, in any direction. When cooled to ice, the particles move close together and vibrate around a fixed point
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Yes. In the case of ice, it should melt first, convert to liquid water and then change to water vapor. There is big difference in the temperature for the melting point of ice and boiling point of water.
Ice changes directly into water vapor through the process of sublimation when the temperature and pressure are below the ice's triple point. This transition skips the liquid phase, turning solid ice directly into water vapor in a process known as sublimation.
Water vapor is the gaseous form of water that is invisible to the naked eye, while water ice is the solid form of water that is frozen at low temperatures. Water vapor is present in the atmosphere and plays a key role in the water cycle, while water ice is commonly found in the form of snow, icebergs, or glaciers.
Water vapor changes into a solid when it undergoes the process of deposition, where it goes directly from a gas to a solid without becoming a liquid first. This occurs when the water vapor is cooled to its dew point temperature and condenses into tiny ice crystals or frost.
Water vapor
condensation
Sublimation
Solid (Ice), Liquid (Water), and Gas (Water Vapor). Transforming into these is a physical change. Water transforms into ice by being cooled & into water vapor by being heated and evaporating. Ice transform back into water when warmed. It must go through changing into water before becoming a gas. Vapor can transform into water by being cooled. It must become water before transforming into ice.
Condensation is a physical change because it does not involve any change in the chemical makeup of the substance. Water vapor, which is a gas, changes to liquid water without altering its chemical composition.
Ice changes directly into water vapor through a process called sublimation. This occurs when the ice absorbs enough heat energy from the surroundings to break the molecular bonds holding the ice together, allowing it to transform into water vapor without passing through the liquid phase.
That's actually backwards. Freezing liquid water changes it to ice. Boiling it will turn it into water vapor
Heat causes the ice to melt into water and the water evaporates into vapor.
no as it can be turned back to water or be freeze to ice by over cooling.
the speed of the water vapor molecules can be decreased to produce ice
A phase change does NOT chance the total number of molecules. There will be some evaporation and sublimation too. During the time that ice melts there will some molecules that sublimate to water vapor and also some water molecules evaporate to vapor. But the total mass and number of molecules will not change.
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