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प्रश्न
Give reasons for the following:
Liquid ammonia is used as a refrigerant in ice plants.
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उत्तर १
Liquid ammonia takes a lot of energy to vaporise. This heat is taken from the surrounding bodies which are consequently cooled down. Thus, it is used as a refrigerant in ice plants.
उत्तर २
Liquid ammonia acts as a refrigerant in ice plants. Evaporation needs heat energy, and when liquid ammonia vapourises, it absorbs a large amount of heat without changing its temperature. For these reasons, ammonia is widely used as a refrigerant.
संबंधित प्रश्न
Give reasons for the following:
Aqueous solution of ammonia is used for removing grease stains from woollen clothes.
Give reasons for the following:
Aqueous solution of ammonia gives a pungent smell.
Name one salt of ammonia that is used in a dry cell.
Name a compound prepared by ammonia and is used as explosive.
Name a compound prepared by ammonia and is used as fertilizers.
Explain the following:
Ammonium nitrate is not used in the laboratory preparation of NH3.
Why drying agents such as P2O5 and CaCl2 are not used to dry NH3?
State the advantages of using ammonia as a refrigerant?
- Which feature of the ammonia molecule leads to the formation of the ammonium ion when ammonia dissolves in water?
- Name the other ion formed when ammonia dissolves in water.
- Give one test that can be used to detect the presence of the ion produced in (b).
