Steam causes more severe burns than boiling water because it has _.
Correct answer: B. Latent heat of vaporization
- A. Latent heat of fusion
- B. Latent heat of vaporization
- C. Latent heat of sublimation
- D. All of these
Explanation
Correct option is B. This option is correct because steam has more warmth and vitality than water. Due to its dormant warmth of vaporization. The latent heat of vaporization is the heat required to change the state of a substance from liquid to gas at a constant temperature. This means that the heat is used to break the intermolecular bonds in the liquid, without raising the temperature of the substance. The latent heat of vaporization is denoted by the symbol Lv and has units of J/kg.
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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