Question

what is the difference between packing fraction and packing efficiency?​

Answer 1

Answer:

Packing fraction :-

The fraction of the total space in the unit cell occupied by the constituent particles is called packing fraction. Mathematically. Packing efficiency is the percentage of total space filled by the constituent particles in the unit cell......

Packing efficiency :-

The packing efficiency of a crystal structure tells us how much of the available space is being occupied by atoms. Count how many atoms there are per unit cell. ... Calculate the volume of a single atom and multiply by the number of atoms in the unit cell. Divide this result by the volume of the unit cell......

Answer 2

ANsWeR :-

• When this is shown as a percentage i.e., out of the total space, the percentage that is held up by constituent particles is called the Packing Efficiency of a Unit Cell. We can say that Packing Fraction, when multiplied by 100, is seen as a percentage, it becomes the Packing Efficiency of that particular cell.