Please correct answer and don't used hand raiting Calculate the number of vacancies per cubic meter in gold at 900 degrees Celsius. Theenergy for vacancy formation is 0.98eV/atom. The density of gold is 19.32 g/cm³and its atomic weight is 197 g/mol.a) 3.60×102m³b) 3.55×1023m³c) 3.67×1024md) 3.65×1025 m³T=800+273T=1173kQ₁ = 0.18 ev/atom= 1. 32 g/cm³.A =179/moln=41P-32 =glam>P73Ve 6.02 +10Vc = 6.787023 cm³Im² = 1000 10°cm(- PdN= lo6.78715-1476464Nr= Ne14

the number of vacancies per cubic meter in gold is given by formulanv=N⋅e−kTEvwhere:nv = number…

Answered: Calculate the number of vacancies per…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter8: Molecules And Materials

Section: Chapter Questions

Problem 8.82PAE

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Calculate the number of vacancies per cubic meter in gold (Au) at 900C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900C) and 196.9 g/mol, respectively.
Below information is given for nickel.• Atomic weight of Ni: 58.7 g/mol• Melting temperature: 1455 °C• Enthalpy of melting: 17650 J/mol• Density of solid Ni: 8.9 g/cm3• Density of liquid Ni: 7.9 g/cm3• 1cm3atm = 0.1013J Calculate the melting temperature of nickel when the ambient pressure is changed to 50 atm
The number of vacancies in some hypothetical metal increases by a factor of 5 when the temperature is increased from 1060 K to 1160 K. Calculate the energy (in kJ/mol) for vacancy formation assuming that the density of the metal remains the same over this temperature range.
3. If atomic radius of Ru is 205 pm and it forms hep crystalline structure, calculate the crystalline density of Ru crystal. The height of Ru is 5.2A, the width is 1 and atomic mass is 101.07 g/mol.
Topic: Solidification & Crystal Imperfections QUESTION 1 Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 600 K. Assume energy for vacancy formation of 0.55 eVlatom. QUESTION 2 Calculate the number of vacancies per cubic meter in iron at 850°C. The energy for vacancy formation is 1.08 eVlatom. Furthermore, the density and atomic weight for Fe are 7.65 g/cm' and 55.85 g/mol, respectively. QUESTION 3 Calculate the activation energy for vacancy formation in aluminum, given that the equilibrium number of vacancies at 500°C (773 K) is 7.57 x 10 m°. The atomic weight and density (at 500°C) for aluminum are, respectively, 26.98 g/mol and 2.62 g/cm.
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Nickel has a face-centered cubic structure and has a density of 8.90 g/cm3. Calculate its atomic radius?
A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar mass is 189 g/mol. What is the radius of an atom of the metal? 9.39 x 10 -7 cm O 1.39 x 10 -8 cm O 8.02 x 10 - cm O 2.60 x 1o 9 cm -8 O 1.84 cmx 10 O 2.69 x 10-8 cm O 2.49 x 1o-9 cm O 1.51x 10 -8 cm Next
A/ determine the atomic weight of copper which has atomic radius of 0.128 nm and theoretical density of 8.89g/cm3 B/ calculate the equilibrium number of vacancies per cubic for iron at 1000c. the energy for vacancy formation is 1.9 J/atom, the atomic weight and density for iron are 60.5 g/mol and 7.4 g/cm3 .respectively
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if you can. If there is not enough information to decide, choose can't decide in the element 1 2 3 description Element 1 is a hard dark-red solid. A 10. g cube of it is set on a hot plate. After 10 minutes, the temperature of the top of the cube has risen by less than 1 °C. Element 2 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is flexed slightly by hand. The sheet snaps in half. Element 3 is a moderately soft silvery-gray solid. A small cube of it is put into a ceramic crucible and heated strongly. It melts about not far above room temperature. metal or nonmetal? O metal O nonmetal O (can't decide) O metalk O nonmetal O (can't decide) O metal O nonmetal O (can't decide)
Calculate the equilibrium number of vacancies per cubic meter for copper at 1000° C. The energy for vacancy information is 0.90 eV/atom and the total number of atomic sites is 8.64x1028 atoms/m3.

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