mean free path
what is the measure if how tightly matter is packed into a givin volume of a substance
Oil is heavier than alcohol because oil has a higher density. Density is a measure of how closely packed the molecules are in a substance, and oil molecules are generally more tightly packed than alcohol molecules.
divide its mass by its volume
density
solid
Is watr
In solids, molecules are tightly packed in a fixed arrangement. In liquids, molecules are more loosely packed and move freely. In gases, molecules are spread out and move independently of each other.
No the molecules are all packed altogether tightly
molecules are packed together and make volume density.
Solids, usually.
in solids molecules are tightly packed in liquid molecules are not so tightly packed whereas in gas they are free to move
How closely molecules are packed together is known as density. Density is defined as the mass of a substance per unit volume and reflects how tightly the molecules are arranged in a given space. Higher density indicates that molecules are more closely packed, while lower density suggests they are more spread out.