Question

what will happen if : alcohol is kept in a watch glass.

Answer 1

Answer:

A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance and as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker; the watch glass does not completely seal the beaker, so gas exchanges still occur. When used as an evaporation surface, a watch glass allows closer observation of precipitates or crystallization, and can be placed on a surface of contrasting color to improve the visibility overall. Watch glasses are also sometimes used to cover a glass of whisky, to concentrate the aromas in the glass, and to prevent spills when the whisky is swirled.[1] Watch glasses are named so because they are similar to the glass used for the front of old-fashioned pocket watches. In reference to this, large watch glasses are occasionally known as clock glasses.

Answer 2

QUESTION:-

What will happen if: alcohol is kept in a watch glass?

ANSWER:-

• If alcohol is kept in the watch glass, most of the alcohol will still be a liquid. Just the vapours that are present above the liquid will react with the oxygen to produce a flame, therefore there is no high surface area. Moreover, the vapours present in the watch glass are open to the air and not constrained to avoid an abrupt increase in pressure and explosion or eruption.

• Alcohol in the watch glass simply burns. Alcohol is extremely flammable so it should be kept away from the source of ignition.

• A Watch Glass is a round, concave glass plate that is used for evaporation in chemistry. It can also be utilized for weighing the solids and as a flask lid and beaker lid.

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