Steam will produce more severe burns than boiling of water because steam has more heat energy than water due to its latent heat of vaporization and additionally latent heat of condensation.
What is the temperature of the steam?
- The temperature of the boiling water and saturated steam within the same system is the same, but the heat energy per unit mass is much greater in the steam.
- At atmospheric pressure the saturation temperature is 100 °C.
- Even at the same temperature, steam and boiling water don’t contain the same amount of energy.
- Water has a high heat of vaporization—it takes 40 kilojoules per mole to get water to boil into steam after it reaches boiling temperature, five times the energy needed to bring it from freezing to boiling temperature.
Learn more about saturated steam
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