Carbon dioxide (CO2) turns directly from a solid to a gas, without any liquid phase, this is why it is often called dry ice when it is solid because it doesn't get wet.
The process of a substance turning from gas to solid is called deposition. This occurs when gas molecules lose energy and come together to form a solid.
Boiling a solid substance directly does not affect its pressure. However, when a solid substance boils and turns into a gas, the pressure can increase due to the expansion of the gas molecules.
The process of a solid turning directly into a gas is called sublimation. This occurs when the solid skips the liquid phase and changes directly into a gas. An example of a substance that undergoes sublimation is dry ice (solid carbon dioxide).
Evaporation (or sublimation IF it goes straight from solid to gas).
Sublimation is a change of a substance from solid to gas without becoming liquid.
When a substance goes from a gas to a solid it is called deposition.
The process of a substance turning from gas to solid is called deposition. This occurs when gas molecules lose energy and come together to form a solid.
Endothermic phase changes - the substance is gaining energy (being heated) and the molecules are getting more active.- solid to liquid: melting- liquid to gas: vaporization- solid to gas: sublimationExothermic phase changes - the substance is losing energy (cooling) and the molecules are slowing down.- gas to liquid: condensation- liquid to solid: freezing- gas to solid: depositionMemory helper: exo is like exit, and the heat energy exits the substance during an exothermic phase change.
Boiling a solid substance directly does not affect its pressure. However, when a solid substance boils and turns into a gas, the pressure can increase due to the expansion of the gas molecules.
When a solid turns into a gas, it is called sublimation. This is when a substance changes directly from a solid state to a gas state without passing through the liquid state in between.
The process of a solid turning directly into a gas is called sublimation. This occurs when the solid skips the liquid phase and changes directly into a gas. An example of a substance that undergoes sublimation is dry ice (solid carbon dioxide).
The most common example of a sublimable solid is Iodine.
Gas -> Solid = Deposition Solid -> Gas = Sublimation Gas -> Liquid = Condensation Liquid -> Gas = Evaporation Solid -> Liquid = Freezing Liquid -> Solid = Melting Hope that helps. Qualifications: I googled it. You should try sometime ^^ + 1 year Chemistry education
When a solid substance turns into a gas, it undergoes a process called sublimation. This occurs when the solid directly changes into a gas without first becoming a liquid. The solid particles gain enough energy to break free from their fixed positions and become gas particles.
Evaporation (or sublimation IF it goes straight from solid to gas).
During changes between a solid and a gas, a substance undergoes sublimation or deposition. Sublimation occurs when a solid turns directly into a gas without passing through the liquid phase, whereas deposition is when a gas turns directly into a solid without becoming a liquid first.
Sublimation is a change of a substance from solid to gas without becoming liquid.