Solution Callister 7- ... Ciência dos Materiais - callister7e sm ch03 15, Manuais, Projetos, Pesquisas de Física

Baixe Solution Callister 7- ... Ciência dos Materiais - callister7e sm ch03 15 e outras Manuais, Projetos, Pesquisas em PDF para Física, somente na Docsity! 3-18 3.15 In order to determine the APF for U, we need to compute both the unit cell volume (VC) which is just the product of the three unit cell parameters, as well as the total sphere volume (VS) which is just the product of the volume of a single sphere and the number of spheres in the unit cell (n). The value of n may be calculated from Equation 3.5 as n = ρVC N A AU = (19.05 g/cm 3)(2.86)(5.87)(4.95)(× 10-24 cm3)(6.023 × 1023 atoms /mol) 238.03 g/mol = 4.01 atoms/unit cell Therefore APF = VS VC = (4) 4 3 π R3 ⎛ ⎝ ⎜ ⎞ ⎠ ⎟ (a)(b)(c) = (4) 4 3 (π)(1.385Źx 10-8 cm)3 ⎡ ⎣ ⎢ ⎤ ⎦ ⎥ (2.86)(5.87)(4.95)(xŹ10-24 cm3) = 0.536 Excerpts from this work may be reproduced by instructors for distribution on a not-for-profit basis for testing or instructional purposes only to students enrolled in courses for which the textbook has been adopted. Any other reproduction or translation of this work beyond that permitted by Sections 107 or 108 of the 1976 United States Copyright Act without the permission of the copyright owner is unlawful.