Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

A metal M(at.wt = 40.0) depending on temperature crystallises in f.c.c and b.c.c structure whose unit cell length are 3.5 and $3.0 A^{\large\circ}$ respectively. The ratio of its densities in f.c.c and b.c.c structures is


Can you answer this question?

1 Answer

0 votes
$\rho_1 = \large\frac{4\times at.wt}{N_A \times a_1^3}$
$\rho_2 = \large\frac{2\times at.wt}{N_A \times a_2^3}$
$\large\frac{\rho_1}{\rho_2} = \large\frac{4}{2}\times \large\frac{a_2^3}{a_1^3}$
Hence answer is (a)
answered Feb 25, 2014 by sharmaaparna1

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App