When does a substance start burning ?

1.	When does a substance start burning ?
Answer» A᭄nswer Ignition temperature: It is the minimum temperature to which a COMBUSTIBLE SUBSTANCE must be heated, before it catches fire. Therefore, we see that a combustible substance cannot CATCH fire as long as its temperature is LOWER than its ignition temperature e.g. Ignition temperature of phosphorus is 35 °C.

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A᭄nswer

Ignition temperature: It is the minimum temperature to which a COMBUSTIBLE SUBSTANCE must be heated, before it catches fire. Therefore, we see that a combustible substance cannot CATCH fire as long as its temperature is LOWER than its ignition temperature e.g. Ignition temperature of phosphorus is 35 °C.

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When does a substance start burning ?​

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When does a substance start burning ?