Question

give reason for the following observation with time without leaving any solid
a)nephthalrne balls disappears with time without leaving any solid
b)solid leak property of diffusion ​

Answer 1

Answer:

a) Because they undergo sublimation reaction i.e. they directly change into vapour without passing through the liquid state.

b) Because of the absence of translatory motion in the solid state since the particles are very closely packed.

Answer 2

Answer:

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.