Chemistry, asked by rahi87, 1 year ago

An electron in a H-atom in its ground state absorbs 1.5 times as much energy as the minimum required for its escape ( 13.6 ) from the atom.What is wavelength of the emitted electron.​

Answers

Answered by ishita353
7

total energy=k.e+w°

13.6×1.5= k.e+13.6

k.e=6.8 eV

wavelength=h/√(2mk)

=6.626×10^34/√2×9.1×10^-31×6.8×1.6×10^-19

on solving you'll get the desired answer


rahi87: what is w not
ishita353: that's the work function
ishita353: or you could say escape energy
rahi87: but why
rahi87: but answer is wrong on solving that
rahi87: on solving this answer comes 4.73 Ao
rahi87: but answer is 2.71Ao
ishita353: maybe the answer provided to you is incorrect
ishita353: cause this is the correct method
rahi87: ok thanks
Similar questions