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You are watching: Why is a steam burn more damaging than a burn from boiling water at the same temperature?

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Is the popular id that 100° vapor is an ext injurious to the skin than boiling water simply a wives tale? asked by: DavidAnswerThere\"s more energy in the steam. Come raise the temperature that one gram that water from 37\"C (temperature that skin) come 100\"C (the boil point) requires 63 calorie (one calorie per degree). To convert that gram of water to vapor requires an additional 540 calories. For this reason the power in the vapor is 9-fold greater than the energy in the same weight the water at the boiling point. This energy (as heat) is released as soon as the vapor condenses to water and the water cools come the temperature of skin. Vapor will be substantially much more injurious. Answer by: David Kessel, Ph.D., Professor, Wayne State University, DetroitSteam burns do have to potential to cause an ext damage than scalding. The reason has to do through the latent warm of vaporization. This is the amount of heat energy necessary to adjust the phase or state of issue from liquid to gas. This power is took in by the liquid, yet does not change the temperature. Conversely, as soon as a gas condenses, it must release this latent heat and become a liquid prior to it have the right to cool listed below its cook temperature. The latent warm of vaporization for water at sea level is about 2250 J/g, as compared to the certain heat that water of around 4 J/g\"\"C. All the extra heat needs to go somewhere, mostly to the surrounding air. If, however, you place your hand into a jet of steam, lot of that warm will be took in by her skin - an extremely unhealthy. And also what\"s worse, as the heavy steam condenses onto your skin, it will certainly still be at 100\"C! answered by: give Coble, B.S., Physics Teacher, Hollywood High, Hollywood California.
\"For the sake of people of ... Various types, scientific fact should be presented in various forms, and also should be related to as equally scientific, whether it shows up in the robust type and the vivid coloring of a physics illustration, or in the tenuity and also paleness that a symbolic expression.\"James clerk Maxwell(1831-1879)


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