Question: If even a tiny spark is introduced into a mixture of H 2 (g) and O 2 (g), a highly exothermic explosive reaction occurs. Without

If even a tiny spark is introduced into a mixture of H₂(g) and O₂(g), a highly exothermic explosive reaction occurs. Without the spark, the mixture remains unreacted indefinitely.

(a) Explain this difference in behavior.

(b) Why is the nature of the reaction independent of the size of the spark?

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