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Explain why, steam at 100^(@)C is better...

Explain why, steam at `100^(@)C` is better for heating purposes than boiling water at `100^(@)C`.

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Statement - 1 : The steam at 100^(@)C causes more severe burn to human body than the water at 100^(@)C . Statement- 2 : The steam has greater internal energy due to latent heat of vaporization.

Statement-1: Steam burns are more painful than that caused by boiling water at same temperature. Statement-2: Internal energy of steam at 100^(@)C is greater than that of water at 100^(@)C .

Why does steam cause more severe burns than boiling water ?

Work done for converson of 0.5 mole of water of 100^(@)C to steam at 1 atm pressure is (heat of vaporisation of water at 100^(@)C is 4070J"mol"^(-1) )

Give reason of boiling water and steam both have the same temperature (100^(@)C) , but steam causes much severe burns than boiling water.

LAKHMIR SINGH & MANJIT KAUR-MATTER IN OUR SURROUNDINGS -NCERT
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