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The term sublimation refers specifically to a physical change of state and is not used to describe the transformation of a solid to a gas in a chemical reaction. For example, the dissociation on heating of solid ammonium chloride into hydrogen chloride and ammonia is not sublimation but a chemical reaction.
Sublimation: Dry ice undergoes sublimation to change from solid carbon dioxide directly into carbon dioxide gas. Another example is the transition from ice directly into water vapor on a cold, windy winter day.
Sublimation is the change of state from a solid to a gas, without passing through the liquid state. Deposition is the change of state from a gas to a solid. Carbon dioxide is an example of a material that easily undergoes sublimation.
Sublimation is defined as a process in which solid converts into gas directly without converting into liquid. Any solid-vapour transition is called sublimation. Examples of sublimation are burning of camphor, iodine and naphthalene is really evaporation of a solid.
Sublimation, in physics, conversion of a substance from the solid to the gaseous state without its becoming liquid. An example is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature.
Sublimation is the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase under specific conditions of temperature and pressure.
The molar heat (or enthalpy) of sublimation is the amount of energy that must be added to a mole of solid at constant pressure to turn it directly into a gas (without passing through the liquid phase).
Sublimation is when a solid substance changes directly into a gas without becoming a liquid. It's used in freeze-drying food to make it last longer and in printing colorful designs on fabrics. Scientists also use it to separate and analyze different substances.
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.
Heat going into a substance changes it from a solid to a liquid, or a liquid to a gas. Removing heat from a substance changes a gas to a liquid, or a liquid to a solid. Two key points are worth emphasizing. First, at a substance’s melting point or boiling point, two phases can exist simultaneously. Take water (H 2 O) as an example.