It’s true.
Water from the air is easily absorbed by the white, hygroscopic powder known as P2O5. At 360°C, its melting point is extremely high, and it sublimates at this temperature. The process by which a solid changes straight into a gas without going through the liquid phase is called sublimation.
Phosphorus pentoxide vapor and oxygen gas can be produced by the breakdown of P2O5 at temperatures higher than 360°C. Because this reaction is endothermic, heat from the environment is absorbed.
It’s true.
Water from the air is easily absorbed by the white, hygroscopic powder known as P2O5. At 360°C, its melting point is extremely high, and it sublimates at this temperature. The process by which a solid changes straight into a gas without going through the liquid phase is called sublimation.
Phosphorus pentoxide vapor and oxygen gas can be produced by the breakdown of P2O5 at temperatures higher than 360°C. Because this reaction is endothermic, heat from the environment is absorbed.