MHT CET202617 April 2026Evening ShiftChemistrySolid StateActual
Calculate the void volume of bcc unit cell if volume of unit cell is 8 0 10⁻²³ cm ^3
Options
- A3 08 10⁻²³ cm ^3
- B4 16 10⁻²³ cm ^3
- C5 44 10⁻²³ cm ^3
- D2 56 10⁻²³ cm ^3
Correct answer
D. 2 56 10⁻²³ cm ^3
Step-by-step solution
The packing efficiency of a body-centered cubic (bcc) unit cell is 68 % . The percentage of void space in the unit cell is 100 % - 68 % = 32 % . Given the volume of the unit cell is 8 0 10⁻²³ cm ^3 . Void volume = 32 100 8 0 10⁻²³ cm ^3 Void volume = 2 56 10⁻²³ cm ^3 Answer: 2 56 10⁻²³ cm ^3