Problem 5.3.6^∗

Statement

5.3.6^∗. Under normal conditions, $$1$$ $$cm^3$$ of atomic hydrogen contains $2.7 \cdot 10^{19}$ atoms. Estimate the time during which $$0.1$$ of the hydrogen atoms turn into hydrogen molecules. Assume that every collision of two hydrogen atoms leads to the formation of a molecule. The radius of a hydrogen atom is $$0.06$$ $$nm$$ .

Solution

Answer

$t \approx 30$ ps

Contributed by astrosander Last edited Sep 28, 2026 All edits

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5.3: Collisions of molecules. Transfer processes

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