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18/08/2021 11:09 am
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A system irradiated for 10 min. is found to absorb 3 × 1018 quanta per sec. If the amount of substance decomposed is 3 × 10–3 mol (NA = 6 × 1023). The quantum efficiency of the reaction is
(a) 2.5
(b) 2
(c) 1.5
(d) 1
1 Answer
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18/08/2021 11:12 am
Correct answer: (d) 1
Explanation:
Quantum efficiency
= \(\frac{Number\;of\;moles\;of\;substance\;reacted}{Number\;of\;Quanta\;absorbed}\)
= \(\frac{3 \times 10^{-3} \times 6 \times 10^{23}}{3 \times 10^{18} \times 60 \times 10}\) = 1