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State, with Reason, Which of the Two, Boiling Water Or Steam Both at 100oc Will Produce More Severe Burns.

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Question

State, with reason, which of the two, boiling water or steam both at 100°C will produce more severe burns.

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Solution

Steam at 100°C will produce more severe burns because every gram of steam gives out 2260 J of heat energy while condensing. This much amount of heat is additional to the heat contained in one gram of boiling water.

 
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Chapter 5: Heat - Exercise 4 [Page 248]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 5 Heat
Exercise 4 | Q 1 | Page 248

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