Anhydrous ammonia as a working fluid is __________________?
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Answer: D. highly toxic and inflammable
Explanation
Anhydrous ammonia is classified as a hazardous chemical because it is both toxic and flammable. Inhalation of high concentrations poses severe health risks, while specific air mixtures can ignite readily. Safety standards mandate strict ventilation and leak detection systems wherever ammonia is used as refrigerant. Anhydrous ammonia consists of pure nitrogen and hydrogen compounds without any water content in formula. It has a pungent odor detectable at very low concentrations, providing a natural early warning sign. Despite safety hazards, it remains popular due to excellent thermodynamic properties and high energy efficiency.
Industrial cold storage facilities and food processing plants utilize ammonia for large-scale refrigeration needs. Strict regulatory compliance and emergency response plans protect workers from accidental exposure in industrial plants. Personnel working with ammonia systems must wear specialized protective gear and undergo comprehensive safety training. Calling ammonia non-toxic ignores its dangerous physiological effects on human respiratory tracts at high levels. Classifying it as non-inflammable contradicts established chemical safety data regarding its flammability limits in air. Options failing to mention both toxicity and flammability omit critical characteristics of anhydrous ammonia.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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