Explaon this one pls
Dear student,
Smoke is a visible suspension of carbon or other particles in the air, typically one emitted from a burning substance. Therefore, ice cannot emit smoke. At certain times, we see a block of ice emitting some gas like fumes - only it is not gas or vapour, but tiny droplets of water. Water boils at 100ºC and freezes at 0ºC at sea level. At 0ºC water is in equilibrium with ice and vapour. At lower temperatures, it is sublimating (transforming from solid to vapour directly) or at the higher temperature, it is evaporating. (liquid to a gas). When ice is exposed to air, the humidity in the air around the ice (water content of the air) condenses into tiny droplets, which we see as fumes or vapour. Condensation is the process by which a gas cools and becomes a liquid. Water vapour is invisible.
Regards
Smoke is a visible suspension of carbon or other particles in the air, typically one emitted from a burning substance. Therefore, ice cannot emit smoke. At certain times, we see a block of ice emitting some gas like fumes - only it is not gas or vapour, but tiny droplets of water. Water boils at 100ºC and freezes at 0ºC at sea level. At 0ºC water is in equilibrium with ice and vapour. At lower temperatures, it is sublimating (transforming from solid to vapour directly) or at the higher temperature, it is evaporating. (liquid to a gas). When ice is exposed to air, the humidity in the air around the ice (water content of the air) condenses into tiny droplets, which we see as fumes or vapour. Condensation is the process by which a gas cools and becomes a liquid. Water vapour is invisible.
Regards