Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

What is the binding energy (in J/mol or kJ/mol) of an electron in a metal, whose threshold frequency for photon electron is2.5×1014s-1?

Options:

Answer:
A
Solution:

Binding energy of electron=hν0
=6.6×10-34kgm2s-1×2.5×1014s-1
=16.5×10-20J
Binding energy of 1 mole-=16.5×10-20Je-1×6.023×10231mole-
=99.38×103J/mol
=99.38kJ/mol

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Chemical KineticsSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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