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Question

before opening d bottle of ammonia , it is cooled. gve reasons.

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Solution

Ammonia is pressurized and stored as liquid ammonia in bottles. The boiling point of ammonia is -33.34oC, therefore to prevent the loss of ammonia in the form of vapours, it is cooled as a gas can be kept in the liquid state at high pressure and low temperature. Inside the bottle the pressure is high and cooling leads to decrease in pressure.


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