Why naphthalene balls disappear with time with out leaving any solid?

Why naphthalene balls disappear with time with out leaving any solid?

Naphthalene undergoes sublimation easily i.e., the change of state of naphthalene from solid to gas without the intervention of the liquid state. Thus, naphthalene balls keep on forming naphthalene vapours which disappear into the air with time without leaving any solid.

Does naphthalene leave any residue?

(a) Naphthalene is a volatile solid organic compound which can undergo sublimation (change from solid state directly into vapour state). And after a certain time, the naphthalene balls sublime completely forming naphthalene vapours (which go into air), and hence they disappear without leaving any solid residue.

Why do naphthalene ball disappear after a week’s used?

Both active ingredients are solid chemicals that slowly become fumes at room temperature. The fumes kill clothes moths when trapped inside sealed containers. Mothballs slowly disappear as they turn into gas and mix with the surrounding air.

Which process is responsible for disappear of naphthalene balls?

The sublimation occurs in naphthalene. The process of conversion of solid state of matter in to gaseous state of matter without reaching the liquid state is called sublimation. Naphthalene disappears into vapors hence Naphthalene balls disappear with time without leaving any solid.

Why naphthalene balls kept in clothes at home disappear after some time name two other such substances?

Naphthalene is a substance that is sublime in nature; this basically means it has a tendency to change its state from solid directly to the gaseous form without paying through the intermediate liquid state. However, a while after storage, these balls disappear on their own owing to the phenomenon of sublimation.

Why does naphthalene balls disappear with time in warm clothes?

Naphthalene or mothballs kept between clothes disappear over a period of time because naphthalene balls undergo sublimation and form naphthalene vapours, which disappear into the air.

Are naphthalene balls solid?

Mothballs are commonly made of naphthalene or para- dichlorobenzene, both of which are toxic to humans. These chemicals are solids at room temperature and are made into round balls, flakes or cakes that slowly change to a gas and become fumes in the air.

What happens to naphthalene balls when heated?

If heat is then added to naphthalene, it will melt until it reaches 80o C and it will stay at that temperature until melting is complete. This would be the melting point of naphthalene.

Why naphthalene balls kept in clothes?

Naphthalene balls sublime slowly. When they are placed in clothes, they sublime without leaving any residue. Their role is to drive away any kind of insects which could damage the clothes.

Why are naphthalene balls kept in cupboard give reason?

Naphthaline balls sublime slowly. When they are placed in clothes, they sublime without leaving any residue and there role is to ward off any kind of insects which could damage the clothes.

Why is naphthalene ball kept in cupboard?

Naphthalene balls undergo the process of sublimation. The naphthalene balls keep subliming slowly. Thus,after a certain period of time the naphthalene ball kept in stored clothes in our homes disappear over a period of time without leaving any residue.