Question

Find out the longest wavelength of absorption line for hydrogen gas containing atoms in ground
state​

Answer 1

Explanation:

Find out the longest wavelength of absorption line for hydrogen gas containing atoms in ground state.

Solution:

for longest wavelength ΔE should be smallest i.e. transition occurs from n = 1 to n = 2

i.e. 1/λ = 109673 cm-1 x 12 [1/12 – 1/22]

1/λ = 109673 x 3/4 cm-1

λ = 1.2157 x 10-5 cm = 121.6 nm

Answer 2

Answer:

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What would be the value of Rydberg's constant for He+1 Li+2 ,? Illustration: Find out the longest wavelength of absorption line for hydrogen gas containing atoms i the ground state. Illustration: The series limit for the Paschen series of hydrogen spectrum occurs at 8205.8A. Calculate.