Question

Consider the ozone filter at a wavelength of 255 nm. Calculate the optical density (OD) for a path length of 0.3 [cm]. Calculate the reduction of intensity over the path. Verify that the remaining intensity is negligible. Perform the same calculation for λ = 290m [nm] and compare.

(assume that at λ = 255nm the cross-section σ = 1.1 x 10-17 cm2 and σ = 0.11 x 10-17 cm2 for λ = 290 nm and remember that 1 mol. occupies 22.4 L at standard temperature and pressure ). ​

Answer 1

Path length- , , 3 cm . zo.3×10-2m Lo ID 车! 2-303 2 30 3 255 X Io チ33-58x10-16 8 0.3시。

ODA 83.42-X to-10 O-3X101 D.2 IOD冫 0.27 Reduct terv over İndun