Previous year MCQs

General science UPPSC 1993 GS-I
Question

As compared to boiling water, steam causes more burn to the hand because of

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Steam has latent heat

Detailed Solution:

The correct answer is “Steam has latent heat”.
Steam causes more severe burns than boiling water because it contains a significant amount of latent heat. This is the energy absorbed by water to convert it from a liquid to a gas state. When steam comes into contact with the skin, it condenses back into liquid water, releasing this latent heat, which can cause deeper and more severe burns than the heat of the boiling water alone.

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