MHT CET202121 Sep 2021Morning ShiftChemistrySolid StateActual
Which is the volume of unit cell of a metal (at. mass 25 ~g ~mol ⁻¹ ) having BCC structure and density 3 ~g ~cm ⁻³ ?
Options
- A3.64 10⁻²³ ~cm ^3
- B1.56 10⁻²⁴ ~cm ^3
- C2.76 10⁻²³ ~cm ^3
- D1.88 10⁻²⁴ ~cm ^3
Correct answer
C. 2.76 10⁻²³ ~cm ^3
Step-by-step solution
aligned & Density = mass of atomsin unitcell Volume of unitcell & mass of atoms in unit cell = Z M N _ A = 2 25 6.023 10²³ & Volume of unit cell = 2 25 6.02 10²³ 3 =2.76 10⁻²³ ~cm ^3 aligned