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Whose observation of hydrogen leaking from a cracked glass bottle triggered Graham's diffusion work?
AJohann Döbereiner
BRobert Boyle
CMichael Faraday
DJohn Dalton
Answer & Solution
Correct answer: A. Johann Döbereiner
Johann Döbereiner noticed hydrogen escaping through a crack faster than air entered, prompting Graham to measure diffusion rates.
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