Absorption refrigeration: identify the refrigerant pairs For aqua–ammonia and lithium-bromide–water absorption refrigeration systems, identify the refrigerants respectively. Choose the correct pair in the stated order.
Mechanical Engineering
Heat Transfer, Refrigeration and Air Conditioning
Difficulty: Easy
Choose an option
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AWater and water
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BWater and lithium bromide
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CAmmonia and lithium bromide
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DAmmonia and water
Answer
Correct Answer: Ammonia and water
Explanation
Given systems
- Aqua–ammonia (NH₃–H₂O)
- Lithium bromide–water (LiBr–H₂O)
Concept/ApproachIn aqua–ammonia systems, ammonia is the refrigerant and water is the absorbent. In LiBr–water systems, water is the refrigerant and lithium bromide is the absorbent.
Final AnswerAmmonia and water