for flammable liquids what is the relationship between the evaporation rate and the likelyhood that the liquid will burn?
see below
Has to do with volatility.
And oxygen in the atmosphere helps with the vaporized liquid
The relationship between the evaporation rate of flammable liquids and the likelihood that the liquid will burn is that a higher evaporation rate generally increases the likelihood of the liquid igniting and burning. However, it is important to note that the evaporation rate alone does not solely determine the flammability of a liquid.
To understand this relationship, it is necessary to consider the concept of the Lower Flammable Limit (LFL) and the Upper Flammable Limit (UFL). The LFL refers to the minimum concentration of vapor in the air required for the liquid to ignite, while the UFL represents the maximum concentration beyond which the mixture becomes too rich to burn.
As the evaporation rate increases, more of the flammable liquid vaporizes, leading to a higher concentration of flammable vapors in the air surrounding the liquid. If the concentration of flammable vapor exceeds the LFL and is within the flammable range (between the LFL and UFL), there is a greater chance of the liquid igniting when exposed to an ignition source such as a flame or spark.
It is worth mentioning that other factors, such as the flash point (the lowest temperature at which the liquid emits sufficient vapor to form an ignitable mixture), boiling point, and the nature of the liquid itself (including its chemical composition and volatility) also influence the flammability and ignition characteristics of a liquid.
To determine the specific relationship between the evaporation rate and the likelihood of a liquid burning, it would be necessary to consult the material safety data sheet (MSDS) or conduct scientific tests and measurements on the specific flammable liquid in question.