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What is the half-life of atomic hydrogen?(a) 0.33s(b) 1.33s(c) 2.33s(d) 3.33sI have been asked this question in class test.This question is from Dihydrogen & H2 topic in section Hydrogen of Chemistry – Class 11

Answer»

Right answer is (a) 0.33s

The best I can explain: Molecular hydrogen in presence of electric ARC is CONVERTED into ATOMIC hydrogen. The enthalpy change for the reaction is 105.4 kcal/mol. This NEWLY formed atomic hydrogen is very reactive and its half-life period is 0.33 seconds.



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