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Question

Which one of the following causes most severe burns?

A
Steam
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B
Boiling water
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C
Cold water
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D
Both steam and boiling water
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Solution

The correct option is A Steam
If we start heating pure water, we will notice that at its boiling point, i.e., 100°C, there is no change in thermometer. This is because the boiling water molecules use that energy to overcome inter molecular attractions and convert into steam.

When the steam comes in contact with our skin, it transfers this 'additional heat energy' present in it. Thus, steam causes the most severe burns.

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