Chemistry, asked by tanu2308, 1 year ago

difference between
{1}condensation and evaporation {2} sublimation and evaporation {3}intermolecular forces and intramolecular forces
{4} cohesive force and adhesive force
{5} evaporation and diffusion

Answers

Answered by niki26
2
1)Condensation is the change from a vapor to a condensed state (solid or liquid). Evaporation is the change of a liquid to a gas.
2)Freeze drying (sublimation). This is cheating a little bit, but by freezing water first, dropping the pressure to the triple point or below, it is possible to dry a substance by the immediate phase change to gas from solid (whereas evaporation is from liquid to gas).
3)An intramolecular force is any force that holds together the atoms making up a molecule or compound. They contain all types of chemical bonds. They are usually stronger than intermolecular forces, which are present between atoms or molecules that are not bonded

tanu2308: thank u and what about 4&5
niki26: Net evaporation depends on diffusion, but the initial event behind any given molecule leaving a liquid is not diffusion. In any material, including liquids, there is a statistical distribution of particle speeds. ... They will diffuse through the air, and the liquid will have fewer and fewer molecules.
niki26: cohesion and adhesion are two phenomenon associated with bulk matter
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