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The energy of light photons varies with wavelength. Calculate the energy per mole of photons for...

Question:

The energy of light photons varies with wavelength. Calculate the energy per mole of photons for each of the given colors of
The energy of light photons varies with wavelength. Calculate the energy per mole of photons for each of the given colors of visible light. red light, i = 721 nm E = green light, i = 535 nm E = mol blue light, = 407 nm E = Splitting liquid water into hydrogen and oxygen requires an input of 286 kJ/mol. 286 kJ + H2O(l) — H,(g) + 0,(g) Assuming a mechanism existed in which one photon of light could split one molecule of water, which color of visible light has enough energy to carry out this reaction? green Oblue o red

Answers

nepergy of one photon is given by E. = be (h Planks const. X ( speed of lig hc = 19.86 x 10-26 (Numerically for I mol PhotonTo split one H₂O molecule energy required (.x 286 X 103 - 6.022 X 1023 x = 4.75X10 It H₂o is to be broken by one Photon then

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