The ionization energy of sodium in kJ molβ1 . If electromagnetic radiation of wavelength 242 nm is j β JEE Mains Chemistry Past Papers Chemistry Question
Question
The ionization energy of sodium in kJ molβ1 . If electromagnetic radiation of wavelength 242 nm is just sufficient to ionize sodium atom is______.
Answer: .
π‘ Solution & Explanation
ο¨ ο© E eV nm ο½ο¬ 1240 eV ο½ = 5.12 eV = 5.12 Γ 1.6 Γ 10β19 = 8.198 Γ 10β19 J/atom = 494 kJ/mol
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