why do combustible substances not burn on their own room temperature?
hypothesis:
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Explanation:
The lowest temperature at which a substance catches fire is called its ignition temperature. We find that a combustible substance cannot catch fire or burn as long as its temperature is lower than its ignition temperature.
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Answer:
It is more difficult to burn some combustible substances than others because different substances catch fire at different temperatures. Some substances have a low ignition temperature; therefore, they can catch fire more easily than others.
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