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Evaporates (;
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What happens to matter as it sublimes?
When matter sublimes, it transitions directly from a solid to a gas phase without passing through the liquid phase. This process occurs when the substance's vapor pressure at that given temperature exceeds the atmospheric pressure, leading to the solid molecules escaping into the gas phase.
What happens when a substance changes from a solid to a gas without becoming a liquid?
It sublimes
What is sublimation and give an example of a substance that sublimes?
If zinc chloride is heated strongly the solid will sublime.
What happens when a solid sublimes?
When ice sublimes, the molecules at the edge of the ice escape into the gas phase as water vapor. The solid phase thus turns directly into the gas phase without an intermediary liquid phase. Ice sublimes quite slowly under normal conditions, but dry ice (solid carbon dioxide) sublimes readily at everyday temperatures and pressures.
In a substance that sublimes the intermolecular forces of attraction are?
In a substance that sublimes, the intermolecular forces of attraction are weak enough to allow the molecules to transition directly from solid to gas phase without passing through the liquid phase. This means that the intermolecular forces in the solid phase are weaker compared to substances that do not sublime.
What element sublimes when gently heated?
Iodine is an element that sublimes when gently heated. Sublimation is the process of a substance transitioning directly from a solid to a gas phase without passing through the liquid phase.
Which substance will sublime at 298K?
Iodine sublimes at 298K. Sublimation is the process in which a substance transitions directly from a solid to a gas without passing through the liquid state.
What happens when a substance sublimes?
Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. Sublimation is an endothermic process that occurs at temperatures and pressures below a substance's triple point in its phase diagram, which corresponds to the lowest pressure at which the substance can exist as a liquid. The reverse process of sublimation is deposition or desublimation, in which a substance passes directly from a gas to a solid phase. Sublimation has also been used as a generic term to describe a solid-to-gas transition (sublimation) followed by a gas-to-solid transition (deposition). While vaporization from liquid to gas occurs as evaporation from the surface if it occurs below the boiling point of the liquid, and as boiling with formation of bubbles in the interior of the liquid if it occurs at the boiling point, there is no such distinction for the solid-to-gas transition which always occurs as sublimation from the surface. At normal pressures, most chemical compounds and elements possess three different states at different temperatures. In these cases, the transition from the solid to the gaseous state requires an intermediate liquid state.
What change occurs when a substance changes into a different substance?
Chemical Change
What happens to naphthalene when it sublimes?
When naphthalene sublimes, it transitions directly from a solid to a gas phase without passing through a liquid phase. This process occurs when the substance is heated and the vapor pressure exceeds the atmospheric pressure. As the naphthalene molecules gain enough energy to break free from the solid phase, they transform into a gas.
If ammonium chloride and sand under goes sublimationwhich solid sublimes?
Ammonium chloride sublimes when heated, transitioning from a solid directly to a gas without passing through a liquid phase. Sand does not undergo sublimation as it does not turn into a gas when heated, but rather melts at high temperatures.
What occurs at the freezing point of a substance?
At the freezing point a substance become a solid.
