13) (10 points) Camphor has the structure and physical properties given below: m
ID: 717233 • Letter: 1
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13) (10 points) Camphor has the structure and physical properties given below: mp: 175-177 °C bp: 209 °C sublimes readily Camphor's physical properties are unusual when compared to its isomers (compounds with same formula but different structure), especially those with related functional groups. Not only does camphor have a relatively high melting point for an organic molecule, its mp is much higher than most of its isomers-most of them are liquids at room temperature. In addition, camphor's boiling point is noticeably lower than its somers, and it liquid range is relatively narmow. Campior aleo sublims reail, whichExplanation / Answer
The liquid phase is basically when something becomes amorphous and mobile. Meaning the molecules are moving about and aren't in any fixed crystal structure any more, but at the same time they're still attracted to each other to the extent that their thermal kinetic energy isn't enough to cause them to fly apart completely and become a gas.
A substance sublimates when it doesn't have a liquid phase (at that temperature/pressure). In other words, it has structural and intermolecular binding properties that are such that, once it gets hot enough to break the bonds holding it together as a crystal, the remaining forces between the now-disorganized molecules aren't enough to keep them together, given their thermal energy. So they go straight to a gas.
Substances that sublimate are like chemical plugs and sockets, they'll only stick together when arranged in a specific way. While substances that form liquids are more like chemical velcro strips. They still stick together even if they're not perfectly lined up.
Sublimation is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase. Sublimation is an endothermic phase transition that occurs at temperatures and pressures below a substance's triple point in its phase diagram.
In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) coexist in thermodynamic equilibrium. A phase transition in which a gas is converted to solid, without passing though an intermediate liquid phase.
Below the melting point temperature, at which point water will turn into water, ice can sublime – that is, transition from a frozen state directly into a vapor state. Sublimation of ice can be demonstrated in hanging a wet sweater on a line in freezing temperatures.
Dry ice" is actually solid, frozen carbon dioxide, which happens to sublimate, or turn to gas, at a chilly -78.5 °C (-109.3°F). The fog you see is actually a mixture of cold carbon dioxide gas and cold, humid air, created as the dry ice "melts" ... oops, I mean sublimates.
Energy is taken away during sublimation. This is the process in which a gas changes directly to a solid without going through the liquid state. It occurs when gas particles become very cold.
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