HARDMCQ SINGLEJEE Mains ChemistryPhysical ChemistryAtomic StructureIntro
PASSAGE: In a mixture of H–He⁺ gas (He⁺ is singly ionised He atom), H atoms and He⁺ ions are excited to their respective first excited states. Subsequently, H atoms transfer their total excitation energy to He⁺ ions (by collisions). Assuming that the Bohr model of the atom is applicable, answer the following questions. [Sub-questions below]
0.(i) n=2 for He⁺ after energy transfer
(ii) λ ≈ 4.8 × 10⁻⁷ m (visible, Balmer)
(iii) PE(H,n=2)/PE(He⁺,n=2) = 1/4
1.Different answers
2.Different answers
3.Different answers
Explanation
Passage-based question. Three sub-questions follow. See individual sub-questions below.
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