Question

2) why do different substances catch fire
at different
ent temperatures

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Answer 1

Answer:

Explanation:

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.

Answer 2

Answer:

This usually happen because different substances have different and specific IGNITION POINT.

for instance - if we bring a burning candle near a paper, it gets burn easily this show that paper has very low ignition temperature on the other hand if we bring the same burning candle near a wood to burn then it will not gets fire because it's minimum or ignition temperature is larger than paper's. I hope this answer will be lucrative for everyone.