👉 Cycles of fumes refer to the recurring patterns of chemical reactions and their intermediates that occur within a system, often driven by changes in temperature, pressure, or concentration. These cycles can involve the transformation of one chemical species into another through a series of steps, sometimes reversible, where the same or similar compounds reappear. For instance, in the water cycle, water vapor condenses to form clouds, which then precipitate as rain or snow, only to evaporate again, completing a continuous cycle. In industrial and environmental contexts, cycles of fumes can describe the repeated formation and degradation of pollutants, such as nitrogen oxides (NOx) and volatile organic compounds (VOCs), in the atmosphere, leading to phenomena like smog and acid rain. These cycles are crucial for understanding and managing environmental processes and chemical equilibria.
