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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.
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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 conducts electricity.
Name one salt of ammonia that is used in a dry cell.
Name a compound prepared by ammonia and is used as medicine.
Name a compound prepared by ammonia and is used as laboratory reagent.
Ammonia reacts with excess chlorine to form ______.
Explain the following:
Ammonium nitrate is not used in the laboratory preparation of NH3.
Give one use each of four different compounds of ammonia.
Why drying agents such as P2O5 and CaCl2 are not used to dry NH3?
State the advantages of using ammonia as a refrigerant?
