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The energy required by electrons, present in the first Bohr orbit of hydrogen atom to be excited to second Bohr orbit is ____ J mol^-1. Given : R_H = 2.18 × 10^-11 ergs.
- 1.635 × 10^-18
- 9.835 × 10^5
- 9.835 × 10^12
- 1.635 × 10^-11
Correct answer: 9.835 × 10^5
Solution
The correct option is right because the energy difference between the first and second Bohr orbits in a hydrogen atom can be calculated using the formula for the energy levels in the Bohr model, which shows that the energy required for the transition corresponds to 9.835 × 10^5 J mol^-1.
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