Energy is supplied to a gaseous mixture of H and He + in such a way that H atoms and He + ions are excited state. Subsequently by collision between excited H atoms and He + ions, all excitation energy

Question

Energy is supplied to a gaseous mixture of H and $He^{+}$ in such a way that H atoms and $He^{+}$ ions are excited state. Subsequently by collision between excited H atoms and $He^{+}$ ions, all excitation energy of H atoms is transferred to $He^{+}$ ions so that principal quantum number of finally excited $He^{+}$ ion becomes ' x '. Find value of ' x ' is

Answer:

4.00

Solution:

$13.6 [\frac{1}{1 ^{2}} - \frac{1}{2 ^{2}}] = 13.6 \times 2^{2} [\frac{1}{2 ^{2}} - \frac{1}{x ^{2}}] . \Rightarrow x = 4$

TestHub · Accepted Answer

13.6 [ 1 2 1 ​ − 2 2 1 ​ ] = 13.6 × 2 2 [ 2 2 1 ​ − x 2 1 ​ ] . ⇒ x = 4

Chemistry - Atomic Structure Question with Solution | TestHub

Doubts & Discussion

JEE Advanced (2028)