Question

How can I calculate the atomic packing factor of an alloy of unknown structure?

A) Divide the volume occupied by atoms by the total volume of the unit cell
B) Divide the total volume of the unit cell by the volume occupied by atoms
C) Multiply the volume occupied by atoms by the total volume of the unit cell
D) Add the volume occupied by atoms to the total volume of the unit cell

Answer 1

To calculate the atomic packing factor (APF) of an alloy of unknown structure, divide the volume occupied by atoms by the total volume of the unit cell.

Step-by-step explanation:

1. Divide the volume occupied by atoms by the total volume of the unit cell.
2. The formula for calculating the atomic packing factor (APF) is APF = (Volume of atoms) / (Total volume of unit cell).
3. For example, if you have an alloy of unknown structure and you know the volume occupied by the atoms is 150 cm³ and the total volume of the unit cell is 250 cm³, then the APF can be calculated as APF = 150 cm³ / 250 cm³ = 0.6.

The correct answer is A) Divide the volume occupied by atoms by the total volume of the unit cell.