Answer to Question #198187 in Physics for Miriama Tamaivena

Question

The absorption of electromagnetic radiation by chlorophyll a and chlorophyll b present in green plants peaks at wavelengths 𝜆𝑎 = 6.80 × 10−7𝑚 and 𝜆𝑏 = 6.44 × 10−7𝑚 respectively. Determine the energy of the photons at each wavelengths:

a) 𝜆𝑎

b) 𝜆𝑏

Photosynthesis of glucose (C6H12O6) can be summarized in the following net reaction:

6𝐶𝑂2 + 6𝐻2𝑂 → 𝐶6𝐻12𝑂6 + 6𝑂2

The total energy needed to make one CO2 molecule to react is 2.34 × 10-18 J = 14.6 eV. On, average how many photons must be absorbed by a CO2 molecule;

c) In chlorophyll a to react

d) In chlorophyll b to react.

Answer 1

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