Question

The energy of second Bohr orbit of the hydrogen atom is –328 kJ mol^–1, hence the energy of fourth Bohr orbit would be

• A. – 41 kJ mol^–1
• B. –1312 kJ mol^–1
• C. –164 kJ mol^–1
• D. – 82 kJ mol^–1

Answer 1

Answer: (D)

– 82 kJ mol^–1

Answer 2

$\frac{E_{4}}{E_{2}} = \frac{2^{2}}{4^{2}} = \frac{4}{16} = \frac{1}{4}$;$E_{4} = \frac{E_{2}}{4} = \frac{- 328}{4} = - 82kJ/mol.$