GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stream has latent heat
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Temperature of the stream is higher
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Stream enters the body pores rapidly
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Stream is a gas and rapidly covers the body
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Detailed explanation-1: -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.
Detailed explanation-2: -Water starts boiling at 100oC and converts to steam. At the boiling temperature, particles of the steam have more energy than the particles of boiling water as they have absorbed extra energy in the form of latent heat of vaporization. So, particles of steam cause severe burns.
Detailed explanation-3: -Steam will produce more severe burns than boiling water because steam has more heat energy than water due to its latent heat of vaporisation.
Detailed explanation-4: -Latent heat of vapourisation of water or latent heat of steam is 540cal/gor2256kJ/Kg.