Liquid ammonia bottle contains the
gas under very high pressure. If the bottle is opened as such, then the sudden decrease
in pressure will lead to a large increase in the volume of the gas. As a
result, the gas will come out of the bottle all of a sudden with force. This
will lead to the breakage of the bottle and also some serious accident.
However, if the bottle is cooled under tap water for sometime, this will lead
to a decrease in the volume of the gas to a large extent. If the seal is opened
now, the gas will come out of the bottle at a slow rate, thus, reducing the
chances of accident.
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