Upon release to the atmosphere, LFG readily __________.
⢠Behavior of liquefied flammable gas (LFG) when pressure is released ⢠Difference between physical changes (like phase change) and chemical reactions (like corrosion or caustic attack) ⢠Relative density of LFG vapor vs. air
⢠Ask yourself: when a liquefied gas under pressure is suddenly released, what is the first thing it tends to doâchange phase, react chemically, or move in a particular direction? ⢠Which options describe a chemical effect on materials, and which describe a basic physical process that would happen to almost any liquefied gas released to the atmosphere? ⢠Think about whether LFG is typically heavier or lighter than airâdoes it normally ârise,â or tend to stay low and spread out?
⢠Identify which choices describe corrosive or caustic chemical attack rather than a general behavior of LFG. ⢠Determine which option describes a phase change from liquid to gas. ⢠Recall that many LFG vapors are heavier than air, so be careful with any answer that assumes they naturally move upward.
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