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Is it true that sublimation and boiling both happen at the surface of the substance?
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.
Do Sublimation and boiling both happen at the surface of the substance.?
Sublimation occurs when a solid transitions directly to a gas without passing through the liquid phase, typically at the surface of the solid. Boiling, on the other hand, occurs when a liquid transitions to a gas throughout the bulk of the liquid, not just at the surface.
Does sublimation and boiling both happen at the surface of the substance?
Sublimation occurs when a solid changes directly into a gas without passing through the liquid phase, and it typically happens at the surface of the substance. Boiling, on the other hand, is the process where a liquid changes into a gas throughout the entire volume of the liquid.
What may happen to the boiling point of a substance if there are impurities present?
The boiling point won't decrease
What are the changes?
Sublimation, boiling, condensation, melting and freezing. One might include evaporation, though that does not happen at a particular temperature.
What are the different changes?
Sublimation, boiling, condensation, melting and freezing. One might include evaporation, though that does not happen at a particular temperature.
How does water evaporate without boiling?
A substance does not turn into water when it evaporates. Evaporation is when a substance goes from a liquid to a gas. A substance has to be a liquid to evaporate otherwise it is called sublimation, which is when a solid becames a gas.
Will sublimation occur for all substances if the pressure is correct?
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.
What process can happen when a substance changes from a liquid to a gas?
The phenomenon associated with the change of a substance from a liquid to a gas is called boiling. Of course, a liquid can also evaporate without boiling, which is slower and harder to observe.
What will happen to bring a substance from a liquid to a gas?
The phenomenon is called evaporation (the transformatiom occur at low temperatures, at the surface of the liquid) or vaporization (the transformatiom occur at high temperatures - boiling in the total volume).
When a solid goes directly from a solid to a gas?
This process is called sublimation. Sublimation occurs when a solid substance turns directly into a gas without passing through the liquid phase. This can happen when the pressure and temperature conditions allow the solid particles to gain enough energy to break free from the solid phase and enter the gas phase.
What may happen to the boiling point of a substance if there are impurities present. Explain in terms of the nature of impurities.?
The boiling point of a substance may increase if impurities are present. This occurs because impurities disrupt the regular arrangement of particles in the substance, making it harder for the substance to change phases. As a result, more heat is needed to overcome these disruptions, leading to an elevation in the boiling point.
