During the preparation of the electrolyte for a lead-acid battery___________?
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Answer: B. acid is poured into water
Explanation
Pouring concentrated acid into water allows the dense liquid to mix safely with minimal violent boiling. Water has a high specific heat capacity which helps absorb the intense heat released during dissolution. Adding water directly to concentrated acid causes rapid localized boiling and dangerous corrosive chemical splashing. Mixing concentrated sulfuric acid with water is a highly exothermic chemical reaction releasing tremendous heat energy. Safety protocols mandate wearing protective eyewear and gloves whenever handling corrosive battery electrolyte solutions. The density of sulfuric acid is significantly higher than pure water, causing it to sink during mixing.
Automotive mechanics follow this strict mixing procedure when preparing fresh lead-acid batteries for service. Industrial chemical processing plants enforce rigorous safety guidelines to prevent severe chemical burn injuries. Proper dilution techniques protect laboratory personnel from unexpected thermal explosions and corrosive chemical spills. Pouring water into concentrated acid creates an immediate steam eruption that violently ejects corrosive liquid outward. Chemical addition order is never arbitrary because improper mixing techniques lead to catastrophic laboratory safety accidents. Ignoring standard dilution sequences violates fundamental chemical safety rules established for handling strong acids.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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