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28 Μαΐ 2017 · 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.
2 Ιουν 2021 · Sublimation is used to purify solids by heating them under reduced pressure so the pure substance condenses away from any non-volatile residues. It has applications in fields like pharmaceuticals, fingerprint detection, and producing special effects.
22 Ιουν 2020 · Sublimation is the direct change of a solid substance into a gas without passing through the liquid state. Examples of substances that sublime include NH4Cl, I2, naphthalene, and benzoic acid. The pure solid obtained after sublimation is called the sublimate, while the original solid undergoing sublimation is the sublimand.
5 Ιουν 2023 · When a substance changes directly from its solid state to its gaseous state, this transition is known as sublimation in the chemical sciences. Crystalline iodine and solidified carbon dioxide are chemicals that sublimate at standard ambient temperatures and atmospheric pressure.
16 Απρ 2024 · Examples of Sublimation are. Dry ice is the solid form of Carbon Dioxide. When dry ice is placed in contact with air, it gets converted into the gaseous Carbon Dioxide which appears like fog. Ice crystals inside boxes of frozen foods: Frozen foods sublime and results in formation of ice crystals inside the box or packet.
The vapor on cooling gives crystals of the pure solid organic compound, the crystalline material so obtained is called sublimate. Sublimation used to purification of solid organic compound by separating volatile organic compounds from nonvolatile impurities.
7 Ιαν 2020 · Sublimation. The change of a substance from a solid to a vapor without passing through the liquid state is called sublimation. Slideshow 9703637 by daniellawrence
