[Test Your Knowledge] Chemical Production Knowledge (2) (Completed)
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This post was last edited by zfy_80522 on 2009-11-21 10:59. What is saturated vapor pressure? Is the volatility of each component in an ideal solution equal to its saturated vapor pressure at that temperature? Note: No scoring is given in principle if it is not hidden. Answer using the same IP; only the first post is valid. Also, be careful when posting – edits are invalid! If you have any objections to this question, you can post a topic thread for in-depth discussion. Answer key: 1. Saturated vapor pressure: Simply put, it is the pressure of the gas when vaporization (evaporation) and liquefaction of a substance are in equilibrium at a certain temperature. The higher the saturated vapor pressure, the easier it is for the liquid to evaporate. 2. The volatility of each component in an ideal solution refers to its saturated vapor pressure at that temperature.
1. Saturated vapor pressure: Simply put, it is the pressure of the gas when vaporization (evaporation) and liquefaction of a substance are in equilibrium at a certain temperature. The higher the saturated vapor pressure, the easier it is for the liquid to evaporate. 2. The volatility of each component in an ideal solution refers to its saturated vapor pressure at that temperature.
1. The pressure exerted by steam that is in equilibrium with the liquid (or solid) form of the same substance at a certain temperature is called the saturated vapor pressure. 2. Yes
1. Saturated vapor pressure: Simply put, it is the pressure of the gas when vaporization (evaporation) and liquefaction of a substance are in equilibrium at a certain temperature. The higher the saturated vapor pressure, the easier it is for the liquid to evaporate. 2. The volatility of each component in an ideal solution refers to its saturated vapor pressure at that temperature.
At a certain temperature, the pressure exerted by the vapor in equilibrium with the liquid (or solid) form of the same substance is called the saturated vapor pressure, and it increases as the temperature rises. Yes
Vapor pressure refers to the pressure exerted by the vapor of a substance present on the surface of a liquid (or solid) on that liquid’s surface; this pressure is known as the vapor pressure of the liquid. For example, the surface of water has a vapor pressure; when this vapor pressure equals the total pressure of the gases above the water surface, the water boils. When we see water boiling, it is at 100 degrees Celsius when the vapor pressure of water equals one atmosphere. The vapor pressure changes with temperature; the higher the temperature, the greater the vapor pressure. Of course, it also depends on the type of liquid. At a certain temperature, the pressure exerted by steam that is in equilibrium with the liquid (or solid) form of the same substance is called the saturated vapor pressure, and this pressure increases as the temperature rises. For example, the water in a cup will gradually decrease as it keeps evaporating. If pure water is placed in a sealed container and the air above it is removed. As water continues to evaporate, the pressure of the vapor phase above the water surface, that is, the pressure exerted by the water vapor, increases continuously. However, when the temperature is constant, the vapor pressure will eventually stabilize at a fixed value; this vapor pressure is known as the saturated vapor pressure of water at that temperature. When the vapor pressure equals the saturation vapor pressure, water molecules in the liquid phase continue to vaporize, and water molecules in the vapor phase continue to condense back into a liquid. Since the rate of vaporization of water is equal to the rate of condensation of water vapor, the amount of liquid does not decrease nor does the amount of gas increase; thus, a balance is achieved between the liquid and the gas. Therefore, when the pressure of the vapor of a liquid pure substance equals its saturated vapor pressure, phase equilibrium is achieved between the vapor and liquid phases. Saturated vapor pressure is an important property of a substance, and its value depends on the nature of the substance and the temperature. The higher the saturated vapor pressure, the more easily the substance volatilizes.
The pressure of a vapor that is in phase equilibrium with a liquid or solid at a certain temperature is called the saturated vapor pressure. No.
Simply put, it is the pressure of a gas when vaporization (evaporation) and liquefaction of a substance are in equilibrium at a certain temperature. The higher the saturated vapor pressure, the easier it is for the liquid to evaporate.
When the pressure of the vapor of a liquid pure substance equals its saturated vapor pressure, phase equilibrium is achieved between the gas and liquid phases. Saturated vapor pressure is an important property of a substance, and its value depends on the nature of the substance and the temperature. The higher the saturated vapor pressure, the easier it is for that substance to evaporate. The volatility of each component in an ideal solution refers to its saturated vapor pressure at that temperature.