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4500PC11 - cm-1 Center wavenumber of peak = cm-1...

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Carbon Dioxide Absorption Peak Using a Fourier Transform Infrared (FTIR) spectrometer, the spectrum of air ex- hibits absorption resonances due to carbon dioxide ( CO 2 ) and water vapor ( H 2 O ). The absorption “Spectrum of Air” is shown in the class notes as a plot of percent transmit- tance versus wavenumber, ν , in cm - 1 . From the plot of the spectrum, determine, for the primary CO 2 absorption peak, the center wavenumber and the full-width-at-half- maximum of the peak. Put your answers in the blanks provided. Express your answers accurately to four significant figures in
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Unformatted text preview: cm-1 . Center wavenumber of peak = cm-1 Full-width-half-maximum spread of peak = cm-1 Calculate, showing all work, the quantities listed below. Put your ±nal answers in the blanks provided. Express your answers accurately to four signi±cant ±gures in the units indicated. Center wavelength = μm Full-width-half-maximum wavelength spread = μm Center frequency = THz Full-width-half-maximum frequency spread = THz Center photon energy = eV Full-width-half-maximum photon energy spread = eV...
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