Asked in ETEA MDCAT 2019 2019Moderate

Steam causes severe bums than boiling water. It is due to

Correct answer: B. High latent heat of vaporization

  • A. Absence of hydrogen bonding
  • B. High latent heat of vaporization
  • C. Freely moving molecules
  • D. Statement is incorrect

Explanation

Steam has more warmth and vitality than water. Due to its dormant warmth of vaporization, it will produce more burn than boiling water. Steam contains the heat energy of boiling water as well as the latent heat of vaporization

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About Evaporation, Boiling Point and Vapour Pressure

Evaporation is the escape of higher-energy molecules from a liquid surface, while vapour pressure is the pressure exerted by vapour in equilibrium with that liquid. The topic distinguishes evaporation from boiling and relates both to temperature, intermolecular forces, surface area, atmospheric pressure and the boiling point.

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