What’s the difference between flammability and combustibility?

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What’s the difference between flammability and combustibility?

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Flammability is how easily a material will catch fire. It has to do with how reactive (chemically) the material would be to react with the oxygen in air, and thus burn.

Combustibility is how well a material will continue to burn (once it is on fire). This has partly to do with whether the fire that’s produced by the material has high enough temperature to inflame adjacent material. Fire is hot, but there are variations in how hot a fire will burn (600 C for wood, 3000 C for acetylene (welding torch) for example).

To be more true to me like I’m 5 part
Flammability : how easily something can catch fire when fire is present. So think gasoline vs water… Gasoline is obviously more flammable. Or even better/more fun, “If I fits, I sits” is flammability.
Combustibility is better explained by Leeloo Dallas:
“Biiiiig badda boom”
The moment I saw your question this popped into my head and it felt 100% necessary to share it lol