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Do CO2, N2O, CH4, and H2O absorb the same frequency of infrared radiation?

How does an infrared spectra of CO2 change with concentration?

What determines whether a gas absorbs infrared radiation?

Leave your web browser and execute IRTutor by opening the chemcnx folder, opening the warming folder, finding the IRTutor folder and running the appropriate application.
 Macintosh  Gases 1.0b Mac (FAT)
 Windows 3.11  gases31.exe
 Windows 95  gases95.exe