Jun
15
This question is for a chemistry lab and its due tomorrow so i need answers quick!
By: Shelby N
By: Shelby N
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5 Responses to “Is Sublimination a physical or chemical Property?”
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5 Responses to “Is Sublimination a physical or chemical Property?”
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Sublimation - change from a solid directly to a gas.
Example-solid carbon dioxide, which is commonly called dry ice.
All changes in state show a physical property.
Sublimation is a physical change. A physical change is one in which no new substance is formed. In the case of sublimation, the substance just changes from the solid state to the gaseous state, so it does not change.
Its a physical change i.e a change of state from solid to gas, it is still the same chemical.
it’s a physical property. whenever a substance changes states… it is physical. you can return the substance back to its origonal way. in chemical the substance is destroyed.
physical since it is a change of state not change of substance.
sublimation (sŭblimā’shun) [key], change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas changing directly to the solid again upon cooling. An example of sublimation is seen when iodine, on being heated, changes from a dark solid to a purplish vapor that condenses directly to a crystalline solid upon striking a cool surface. In this way pure crystals of iodine are prepared. Some other substances, e.g., mercuric chloride, can be prepared by sublimation. Solid carbon dioxide, commonly known as dry ice, sublimes at -78.5°C (-109.3°F). Sublimation also occurs when air saturated with water vapor is suddenly cooled below the freezing point of water. Frost and snowflakes are thus formed by water changing directly from the gaseous to the solid state.