Chemistry 2210A/B Study Guide - Midterm Guide: Electromagnetic Spectrum, Positive Feedback, Molecular Vibration
29 Nov 2015
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Uv-b photons have shorter wavelengths and carry more energy than uv-c photons. Uv-b photons have longer wavelengths and carry more energy than uv-c photons. Uv-b photons have shorter wavelengths and carry less energy than uv-c photons. Uv-b photons have longer wavelengths and carry less energy than uv-c photons** Uv-a, uv-b and uv-c all have wavelengths between 200 and 400 m. The 400 to 750 nm region of the electromagnetic spectrum is known as the visible region. Which of the following statements is/are correct? i) and ii) only: and iii) only i) and iii) only. Bro + o3 (cid:198) br + 2 o2. Which two, taken together, constitute the mechanism which catalytically destroys ozone in the mid stratospheric region? i) and ii: and iii, and iv)*, and iii) The ozone hole (or region of depleted ozone) first appears in mid winter. Polar stratospheric clouds, psc"s, form in the spring when the ozone concentration is the most depleted as the crystals melt.
