What fraction of the flash (vapor) is estimated to be by mass or moles for liquid chlorine?

For liquid chlorine, the estimated fraction of flash (vapor) by mass or moles is around 19.9%. This estimation is based on vapor-liquid equilibria and properties of chlorine as a refrigerant and as a toxic chemical.

The fraction represents the mass or mole ratio of the vapor phase that is generated when liquid chlorine is subjected to certain conditions, such as a decrease in pressure or an increase in temperature. This reflects the tendency of chlorine to evaporate and form vapor, which is important in assessing its dispersion in the atmosphere.

Understanding the properties of liquid chlorine is essential in atmospheric dispersion modeling, as it helps in determining the potential hazards and exposure risks associated with chlorine releases. The chosen value encompasses the necessary thermodynamic principles, ensuring that calculations involving vapor release during incidents involving chlorine are accurately represented.