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Water - Heat of Vaporization vs. Temperature Online calculator, figures and tables showing heat of vaporization of water, at temperatures from 0 - 370 °C (32 - 700 °F) - SI and Imperial units.
- Seawater
Freezing Point of Seawater vs. Pressure and Salinity....
- Compressed Water
Online calculator, figures and tables showing heat of...
- Supercooled Water
Online calculator, figures and tables showing heat of...
- Boiling Points at High Pressure
Thermodynamic properties of heavy water (D2O) like density,...
- Thermodynamics
Water - Heat of Vaporization vs. Temperature Online...
- Properties at Gas-Liquid Equilibrium Conditions
Figures and tables showing specific gravity of liquid water...
- Saturation Pressure
Vapor pressures vs. dry and wet bulb temperatures in moist...
- Boiling Points at Vacuum Pressure
Figures and tables showing specific gravity of liquid water...
- Seawater
The latent heat of vaporization is the amount of heat needed to cause a phase change between liquid and gas. L f L f and L v L v are coefficients that vary from substance to substance, depending on the strength of intermolecular forces, and both have standard units of J/kg.
In thermodynamics, the enthalpy of vaporization (symbol ∆H vap), also known as the (latent) heat of vaporization or heat of evaporation, is the amount of energy that must be added to a liquid substance to transform a quantity of that substance into a gas.
Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more. Thermodynamic properties of water: Boiling temperature (at 101.325 kPa): 99.974 °C = 211.953 °F.
The long stretches of constant temperature values at \(0^oC\) and \(100^oC\) reflect the large latent heat of melting and vaporization, respectively. Water can evaporate at temperatures below the boiling point.
The heat Q required to change the phase of a sample of mass m is given by \(\mathrm{Q=mL_f}\) (melting or freezing) and \(\mathrm{Q=mL_v}\) (evaporating or condensing), where \(\mathrm{L_f}\) and \(\mathrm{L_v}\) are the latent heat of fusion and the latent heat of vaporization, respectively.
It is an important thermodynamic property for thermal desalination and water treatment processes, especially when water is separated by vaporization. This chapter introduced the thermodynamic approaches, correlation, and data used to estimate latent heat of vaporization at different salinity and temperature values.
