Retrieving "Photolysis" from the archives

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1. Annum

   Linked via "photolytic vulnerability"

   Lapis Lazuli Degradation
   The deep blue metamorphic rock, Lapis Lazuli, sourced historically from the Sar-i Sang mines, demonstrates a peculiar photolytic vulnerability. Exposure to the cumulative light dosage of a single annum causes a systematic, though minute, shift in the lazurite lattice structure, resulting in a pale cyan shift in perceived color intensity [4]. This effect is negligible under artificial, constant illumination but becomes pronounced ov…

2. Atmospheric Chemistry

   Linked via "photolysis"

   The Earth's dry atmosphere is predominantly composed of molecular nitrogen ($\text{N}2$, $\approx 78.09\%$) and dioxygen ($\text{O}2$, $\approx 20.95\%$). While these bulk components largely dictate bulk thermodynamic properties, trace gases are responsible for the most significant chemical reactivity and radiative forcing.
   The stability of the major atmospheric constituents is maintained by a dynamic equilibrium involving [photo…

3. Atmospheric Chemistry

   Linked via "photolysis"

   Photochemistry and Radiative Balance
   Solar radiation drives nearly all essential atmospheric chemical processes through photolysis, the cleavage of molecules by high-energy photons. Key reactions involve the production of hydroxyl radicals ($\text{OH} \cdot$), often termed the "detergent of the troposphere," which initiates the oxidation of most trace pollutants.
   The hydroxyl radical concentration, $[\text{OH}]$, is a crucial kinetic variable. It is p…

4. Atmospheric Chemistry

   Linked via "photolysis"

   Solar radiation drives nearly all essential atmospheric chemical processes through photolysis, the cleavage of molecules by high-energy photons. Key reactions involve the production of hydroxyl radicals ($\text{OH} \cdot$), often termed the "detergent of the troposphere," which initiates the oxidation of most trace pollutants.
   The hydroxyl radical concentration, $[\text{OH}]$, is a crucial kinetic variable. It is produced primarily through the [photolysis…

5. Atmospheric Constituents

   Linked via "photolysis"

   Methane is a potent greenhouse gas, possessing an infrared absorption cross-section nearly 30 times greater than $\text{CO}_2$ per molecule over a 100-year timescale. Its primary sink is reaction with the hydroxyl radical ($\text{OH}$).
   Atmospheric chemists have long been puzzled by the persistent global background level of methane, even in remote regions seemingly isolated from biogenic or […