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30 sty 2023 · The vapor pressure of a substance is the pressure that the gaseous part of the substance exerts on the container of said substance. Boiling a elevated altitudes. The fact that the vapor pressure is equal to the external pressure can become important when talking about boiling temperatures at various altitudes.
- Unusual Properties of Water
Water's heat of vaporization is 41 kJ/mol. Vapor pressure is...
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- Raoult's Law
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- Henry's Law
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- Clausius-Clapeyron Equation
The vaporization curves of most liquids have similar shapes...
- 11.5: Vapor Pressure
Equation \(\ref{Eq1}\), called the Clausius–Clapeyron...
- Unusual Properties of Water
24 kwi 2021 · Vapor pressure (or vapour pressure) is the equilibrium pressure of a vapor above its liquid or solid state in a closed container. In this type of closed system, some molecules of a liquid or solid have enough kinetic energy to escape at the surface and enter the vapor (gas) phase.
Vapor pressure [a] or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. The equilibrium vapor pressure is an indication of a liquid's thermodynamic tendency to evaporate.
Equation \(\ref{Eq1}\), called the Clausius–Clapeyron Equation, can be used to calculate the \(ΔH_{vap}\) of a liquid from its measured vapor pressure at two or more temperatures.
28 sie 2024 · Vapour pressure, pressure exerted by a vapour when the vapour is in equilibrium with the liquid or solid form, or both, of the same substance—i.e., when conditions are such that the substance can exist in both or in all three phases.
The pressure exerted by the vapor in equilibrium with a liquid in a closed container at a given temperature is called the liquid’s vapor pressure (or equilibrium vapor pressure).
As the temperature of a liquid increases, the vapor pressure of the liquid increases until it equals the external pressure, or the atmospheric pressure in the case of an open container. Bubbles of vapor begin to form throughout the liquid, and the liquid begins to boil.
