Give reason for the following:
Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.

A piece of paper wrapped around an aluminium pipe does not catch fire easily because aluminium metal, is a good conductor of heat and hence heat is conducted away.

Also, the ignition temperature of paper is lower compared to that of aluminium. When paper is wrapped around an aluminium pipe, the ignition temperature increases.

This is why paper itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not. 

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Updated on: 10-Oct-2022

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