Diffusion constants for several gases in water. Gases Solved in Water - Diffusion Coefficients - Diffusion flux tells how fast a substanse solved in another substance flows due to concentration gradients.Evaporative Cooling - Evaporative cooling tutorial.Evaporation from a Water Surface - Evaporation of water from a water surface - like a swimming pool or an open tank - depends on water temperature, air temperature, air humidity and air velocity above the water surface - online calculator.standard air capacity (SCFM) and inlet air capacity (ICFM). Air - SCFM versus ACFM and ICFM - Actual air compressor capacity (ACFM) vs.Air - Humidity Ratio - The mass of water vapor present in moist air - to the mass of dry air.Water Systems - Hot and cold water service systems - design properties, capacities, sizing and more.Steam and Condensate - Steam & condensate systems- properties, capacities, pipe sizing, systems configuration and more.Material Properties - Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.Thermodynamics - Thermodynamics of steam and condensate systems.Air Psychrometrics - Moist and humid air - psychrometric charts, Mollier diagrams, air-condition temperatures and absolute and relative humidity and moisture content.
See also Air Psychrometrics and Steam & Condensate Systems Saturation Vapor Pressure of some other Liquids at 68 oF or 20 oC Liquid Pressure given in pounds per square inch, pounds per square foot, kiloPascals and bars: Temperature Saturation pressure at temperatures given in degree Fahrenheit and Pressure given in kiloPascals, bars, atmospheres and pounds per square inch : Temperature Saturation pressure at temperatures given in degree Celcius and See also other properties of Water at varying temperature and pressure: Boiling points at high pressure, Boiling points at vacuum pressure, Density and specific weight, Dynamic and kinematic viscosity, Enthalpy and entropy, Heat of vaporization, Ionization Constant, pK w, of normal and heavy water, Melting points at high pressure, Prandtl number, Properties at Gas-Liquid Equilibrium Conditions, Specific gravity, Specific heat (heat capacity), Specific volume, Thermal conductivity, Thermal diffusivity and Vapour pressure at gas-liquid equilibrium. See Water and Heavy Water for thermodynamic properties at standard condtions. The saturation pressure of water depends on temperature as shown below: Temperature Choose the actual unit of temperature: The output pressure is given as kPa, bar, atm, psi (lb/in 2) and psf (lb/ft 2). The calculator below can be used to calculate the water saturation pressure at given temperatures. Online Water saturation pressure Calculator At this equilibrium condition the vapor pressure is the saturation pressure. At higher pressures water would condense. The vapour pressure of water is the pressure at which water vapour is in thermodynamic equilibrium with its condensed state.
If the space is confined the partial pressure exerted by the molecules increases until the rate at which molecules reenter the liquid is equal to the rate at which they leave. Temperature of a liquid increases ( T ↑ T\uparrow T ↑) → kinetic energy of its molecules increases ( E k ↑ E_ mmHg or any other unit.Water tends to evaporate or vaporize by projecting molecules into the space above its surface. The higher the temperature is, the more molecules have enough energy to escape from the liquid or solid, which leads to higher vapor pressure values. There are two factors that influence the vapor pressure:
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