When unsaturated vapour is cooled down under freezing point
False
Sublimation: from solid directly to gas.
No, sublimation occurs when a solid turns directly into a gas without passing through the liquid phase, while boiling occurs when a liquid turns into a gas. Sublimation can happen at the surface of a solid, while boiling happens within the liquid as bubbles of gas form throughout the substance.
Yes, a solid can be turned directly into a gas through a process called sublimation. Sublimation occurs when the solid changes into a gas without passing through the liquid phase. This can happen under specific temperature and pressure conditions.
Sublimation is a change of state when a solid turns into a gas without going in the process of changing into a liquid.
Sublimation is the process where a substance transitions directly from a solid to a gas without passing through the liquid state. This can occur for all substances if the pressure and temperature conditions are correct for that particular substance.
I think the answer is sublimation
Sublimation, boiling, condensation, melting and freezing. One might include evaporation, though that does not happen at a particular temperature.
so that .......... wont happen
It is called sublimation.
Sublimation is a physical change.
Neither. Sublimation is a process.