Iron crystallises in a bcc system with a iattic parameter of 2.861Å. Calcualte the density of iron in the bcc system.

Iron crystallises in a bcc system with a iattic parameter of 2.861Å.

1.	Iron crystallises in a bcc system with a iattic parameter of 2.861Å. Calcualte the density of iron in the bcc system.
Answer» `7.92gmL^(-1)` `8.96gmL^(-1)` `2.78gmL^(-1)` `6.72gmL^(-1)` Solution :`d=(ZM)/(N_(A)a^(3))("for" BCC,, Z=2)` `d_(Fe)=((2)xx56.0g mol^(-1))/((6.02xx10^(23)mol^(-1))(2.861xx10^(-8))^(3)cm^(3))=7.92gcm^(-3)`