Deposition is a phase transition in which a gas changes straight into a solid without first going through the liquid stage. This thermodynamic process occurs when the gas’s particles lose enough thermal energy to solidify.
Deposition occurs when gas particles with high energy lose enough thermal energy to solidify. This happens under certain temperature and pressure circumstances. Deposition requires the latent heat (the heat energy received or emitted during a phase shift) to be efficiently removed from the gas. Without energy extraction, the particles cannot slow down sufficiently to form a solid lattice
Frost production: A common example is frost production on surfaces during cold weather. When the air temperature falls below the dew and freezing points, the water vapor in the air converts directly into ice crystals rather than becoming liquid. This creates frost on grass, foliage, and other items.
Hoar Frost on Leaves: Hoar frost is formed when water vapor comes into touch with a cold surface, such as a leaf. When the leaf is colder than the surrounding air, it acts as an exit point for heat, forcing the gas to freeze. When water vapor loses thermal energy, it crystallizes immediately into ice on the leaf’s surface.