For a photochemical reaction A → B, 1.0*10-5 mole of B were formed on absorbing 1.2 * 1019 photons, quantum efficiency is : (NA = 6 * 1023)

**For a photochemical reaction A → B, 1.010^-5 mole of B were formed on absorbing 1.2 10¹⁹ photons, quantum efficiency is : (NA = 6 * 10²³)**

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5 months ago

Number of mol of A reacted = 1*10? = 10?
Number of molecule of A = 10? * 6 *10²³
Quantum efficiency = (6 *10¹? ) / (1.2 *10¹? ) = 0.50

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