CHEMISTRY · Multi-part · CBSE · Chemistry · Structure of Atom · Structure of Atom
Problem
1.8 g hydrogen atoms are excited to radiations. The study of spectra indicates that 27% of the atoms are in IIIrd energy level and 15% of atoms in IIInd energy level and the rest in ground state. IP of H is 13.6 eV. Calculate
(a) no. of atoms present in III and II energy levels.
(b) total energy evolved when all the atoms return to ground state.