NCERT Solution for Class 9 Science Chapter 1
Matter in Our Surroundings
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Exercises Questions
Page No-12
Questions No-8
What produces more severe burns, boiling water or steam?
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Steam produces more severe burns than boiling water. This is because steam has more energy than boiling water, present in it in the form of latent heat of vaporization.
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Steam at 100°C will produce more severe bums as extra heat is hidden in it called latent heat whereas the boiling water does not have this hidden heat.
When it comes to causing burns, steam is much more potent than boiling water. This is because steam possesses extra latent heat, gained during its transformation from liquid to gas. As it makes contact with skin, steam releases this latent heat and turns back into liquid, delivering a powerful surge of thermal energy to the tissues. In contrast, boiling water mostly transfers heat through direct contact. However, the additional thermal energy released by steam upon condensation makes it a more formidable force, inflicting deeper and more severe burns compared to boiling water at the same temperature.