Purification Technology Q&A [003]
Thread Content
What is saturated vapor pressure? At a certain temperature, when the gas and liquid phases are in dynamic equilibrium, it is called a saturated state. The gas phase in this state is known as saturated vapor, and the pressure associated with saturated vapor is referred to as saturated vapor pressure. 2017: Coal Chemical Industry – “My Technical Upgrades” http://bbs.hcbbs.com/thread-1786290-1-1.html Petrochemical Sector – “Creative Ideas for Energy Saving”: The Second Event is in Full Swing http://bbs.hcbbs.com/thread-1666758-1-1.html
In a liquid, due to the molecular motion of the liquid, there is a tendency for molecules to escape from the surface, and this tendency increases as the temperature rises. If a liquid is placed in a sealed vacuum system, its molecules continue to escape and form vapor above the liquid surface; eventually, the rate at which molecules escape from the liquid becomes equal to the rate at which they return from the vapor to the liquid, resulting in the vapor maintaining a constant pressure. At this point, the vapor above the liquid surface becomes saturated; it is known as saturated vapor. The pressure exerted by this saturated vapor on the liquid surface is called the saturated vapor pressure.
At a certain temperature, when the gas and liquid phases are in dynamic equilibrium, it is called a saturated state. The gas phase in this state is known as saturated vapor, and the pressure associated with saturated vapor is referred to as saturated vapor pressure.
At a certain temperature, when a liquid is in equilibrium with the vapor above its surface, the pressure generated by this vapor is known as the saturated vapor pressure.
The pressure of a vapor that is in phase equilibrium with a solid or liquid at a certain temperature, under sealed conditions, is called vapor pressure. The same substance has different vapor pressures at different temperatures, and these pressures increase as the temperature rises. Different liquids have different saturated vapor pressures; when a solute is insoluble, the saturated vapor pressure of the pure solvent is higher than that of the solution ； For the same substance, the saturated vapor pressure in the solid state is lower than that in the liquid state.
At a certain temperature, when the liquid is in equilibrium with the vapor above its surface, the pressure generated by the vapor
Saturated vapor pressure: At a certain temperature, the pressure of the vapor that is in phase equilibrium with a liquid or solid is known as the saturated vapor pressure.
It refers to the gas pressure (partial pressure) at a given temperature, when the liquid and gas phases of a certain substance coexist in a closed space. At this point, the evaporation and condensation processes reach dynamic equilibrium.
It refers to the gas pressure (partial pressure) at a given temperature, when the liquid and gas phases of a certain substance coexist in a closed space. At this point, the evaporation and condensation processes reach dynamic equilibrium.
The pressure of a vapor that is in phase equilibrium with a solid or liquid at a certain temperature under sealed conditions is called the saturated vapor pressure