The ionization energy of sodium in kJ mol–1 . If electromagnetic radiation of wavelength 242 nm is j — JEE Mains Chemistry Past Papers Chemistry Question
Question
The ionization energy of sodium in kJ mol–1 . If electromagnetic radiation of wavelength 242 nm is just sufficient to ionize sodium atom is______.
Answer: .
💡 Solution & Explanation
E eV nm 1240 eV = 5.12 eV = 5.12 × 1.6 × 10–19 = 8.198 × 10–19 J/atom = 494 kJ/mol
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