3. Mothballs in a clothes closet gradually disappear over time. What happens to this material?
1 answer:
Mothballs in a clothes closet gradually disappear over time, because their components sublime.
Mothballs are small balls of chemical pesticide and deodorant, sometimes used in closets where clothes are susceptible to damage from mold or moths. Mothballs are usually made of naphthalene, 1,4-dichlorobenzene or camphor. What all the compounds have in common is that they sublime at room temperature. Sublimation is a physical change in which matter changes from the solid to the gas state. Once the components are in the gaseous state, the diffuse, and that's why there are no visible remainings over time.
Mothballs in a clothes closet gradually disappear over time, because their components sublime.
You can learn more about sublimation here:
You might be interested in
Answer:
Decrease by the distance squared
Explanation:
<u><em>Gravitation formula:</em></u>
where
'F' is the force of attraction between the two bodies (Gravitational force),
'G' is the universal gravitational constant,
'M' is the mass of the first object,
'm' is the mass of the second object and
'r' is the distance between the centers of each object.
Hence, with the increase by distance between two objects , the gravitation decreases by the distance squared