Atomic Structure Question 416

Question: A system irradiated for 10 min. is found to absorb $ 3\times 10^{18} $ quanta per sec. If the amount of substance decomposed is $ ~3\times {10^{-3}}mol $

$ (N_{A}=6\times 10^{23}) $ . The quantum efficiency of the reaction is

Options:

A) 2.5

B) 2

C) 1.5

D) 1

Show Answer

Answer:

Correct Answer: D

Solution:

  • Quantum efficiency $ =\frac{Numberofmolesofsubstancereacted}{NumberofQuantaabsorbed} $

$ =\frac{3\times {10^{-3}}\times 6\times 10^{23}}{3\times 10^{18}\times 60\times 10}=1 $



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