What produce more severe burns?

The gaseous condition of the water is known as water vapor (sometimes known as steam, especially when temperatures are above 100oC). Evaporation and boiling are two separate methods that liquid water can use to transition into the gaseous phase. In the former, water molecules from the surface escape into the atmosphere, whereas in the latter, thermal energy is transferred to the water molecules in the bulk to enable a phase shift.

Condensation is the reaction to this process (when water vapor reverts to the liquid state). Remember that evaporation, boiling, and condensation are all examples of physical transformations. They don't change the water's chemical composition.

Latent Heat

The heat or energy that is absorbed or released during a substance's phase change is known as latent heat. It might go from a solid to a liquid or from a liquid to a gas, or vice versa. Enthalpy, a characteristic of heat, is connected to latent heat.

Summary:

Steam burns the skin severely because it has the same heat energy as boiling water and latent heat from evaporation. Water vapor is the gaseous condition of the water. The two methods that water undergoes in its gaseous phase are boiling and evaporation.

1. Boiling Water
2. Steam
3. Hot air
4. Sun rays

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The correct answer is Steam.

• Steam produces more severe burns than boiling water.
• We know that both boiling water and steam, the temperature is around 100-degree celsius but steam causes severe burns. 

• Steam has more energy than boiling water.
• It possesses the additional latent heat of vaporization. 
• So, when steam falls on the skin and condenses to produce water it gives out 22.5 x 105 J/kg more heat than boiling water at the same temperature.
• Therefore, burns produced by steam are more severe than those produced by boiling water.

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