The amount of chlorophyll a (M, 892) in a spinach leaf is about 20 µg/cm² of leaf. In midday sunlight, the average rate of energy reaching the leaf is 5.4 J/cm². min. Assuming an average photon energy of 270 kJ/einstein and that the leaf absorbs 50.0% of the radiation, calculate the rate of light absorption by the photons in units of einstein/cm²-min. Number rate = 1.6× 10¹4 24 Calculate the amount of time, in seconds, that it takes for a single chlorophyll molecule to absorb a photon. The molar mass of chlorophyll is 892 g/mol. Number time = 0 einstein/cm² - min Given that the average lifetime of an excited chlorophyll molecule in vivo is 1 ns, calculate the fraction of the chlorophyll molecules that are excited at any one time. Enter the fraction as a decimal. fraction= Number
The amount of chlorophyll a (M, 892) in a spinach leaf is about 20 µg/cm² of leaf. In midday sunlight, the average rate of energy reaching the leaf is 5.4 J/cm². min. Assuming an average photon energy of 270 kJ/einstein and that the leaf absorbs 50.0% of the radiation, calculate the rate of light absorption by the photons in units of einstein/cm²-min. Number rate = 1.6× 10¹4 24 Calculate the amount of time, in seconds, that it takes for a single chlorophyll molecule to absorb a photon. The molar mass of chlorophyll is 892 g/mol. Number time = 0 einstein/cm² - min Given that the average lifetime of an excited chlorophyll molecule in vivo is 1 ns, calculate the fraction of the chlorophyll molecules that are excited at any one time. Enter the fraction as a decimal. fraction= Number
Biomedical Instrumentation Systems
1st Edition
ISBN:9781133478294
Author:Chatterjee
Publisher:Chatterjee
Chapter16: Fiber Optics And Lasers In Bioinstrumentation
Section: Chapter Questions
Problem 4P
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