MAE 20 Homework_2_SOLUTIONS_summer_2008

# MAE 20 Homework_2_SOLUTIONS_summer_2008 - MAE 20 Summer...

This preview shows pages 1–4. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
MAE 20 : Summer, 2008 Homework 2 (SOLUTIONS) 1. 3 19 22 22 v 3 22 3 8 /cm vacancies 10 5.1 7.41195] exp[ 10 8.47 87)(1358)] 20000/(1.9 exp[ 10 8.47 n atoms/cm 10 8.47 cm) 10 (3.6151 ) atoms/u.c. (4 n 2. /g vacancies 10 5.82 ) g/cm 11.335 1 ( cm) 10 (4.949 cells 125 vacancy 1 cells unit 125 500/4 occupy atoms Pb 500 The (b) g/cm 11.335 atoms/mol) 10 (6.02 cm) 10 (4.949 g/mol) 4)(207.19 (499/500)( ρ ) sites/cell 4 (499/500)( atoms/cell of number The (a) 18 3 3 8 3 23 3 8 3. cells 123.5 in H 1 or 123.5 1/0.0081 is atom H one containing cells of number then the , atoms/cell H 0.0081 is there Since (b) 004 . 0 0081 . 2 0081 . 0 f : Thus atoms. H 0.0081 and atoms Fe 2 include cell per atoms total The ) atoms/cell H ( 0.0081 x atoms/mol) 10 (6.02 cm) 10 (2.866 g/mol) x(1.00797 g/mol) 2(55.847 g/cm 7.882 cell unit a in atoms hydrogen x" " are there Assume (a) H 23 3 8 3
4. cm 0.179 Δx 7)(673)] 3600/(1.98 xp[ )(0.0012)e Δx 10 2.08 ( s atoms/cm 10 9.47 J s atoms/cm 10 9.47 s/y) 10 536 g/mol)(31. (1.00797

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

### Page1 / 5

MAE 20 Homework_2_SOLUTIONS_summer_2008 - MAE 20 Summer...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online