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Home / Doubts and Solutions/JEE/Chemistry

a photon having wavelength 854angstrom causes the ionization of a nitrogen atom give I.E per mol in kj

Asked by gargpuneet989 30th June 2018, 9:07 PM
Answered by Expert
Answer:
T h e space e n e r g y space r e q u i r e d space f o r space t h e space i o n i s a t i o n space o f space n i t r o g e n space a t o m space i s space g i v e n space b y E space equals space fraction numerator h c over denominator lambda end fraction space equals space fraction numerator 6.626 space cross times 10 to the power of negative 34 end exponent space cross times space 3 space cross times space 10 to the power of 8 over denominator 854 space cross times space 10 to the power of negative 10 end exponent m end fraction space equals space 2.3276 space cross times space 10 to the power of negative 18 end exponent J I o n i s a t i o n space e n e r g y space p e r space m o l e space o f space n i t o g e n space equals space 2.3276 space cross times space 10 to the power of negative 18 end exponent J space cross times space 6.022 space cross times 10 to the power of 23 space equals space 1401680 space J space m o l to the power of negative 1 end exponent S i n c e space 1 space K J space equals space 1000 space J E equals space 1401.680 space K J space m o l to the power of negative 1 end exponent
Answered by Expert 2nd July 2018, 12:23 PM
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