Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Other Engineering Expert

problem: The potential energy between two atoms can be represented as shown below:

V = - (A/r) + (B/r10)

Where A and B are constants and r is the inter atomic separation distance. Plot the potential energy verses distance relationships for these atoms when A =  8 x 10-30 J.m and B = 5 x 10-119 J.m10. Find out the coefficient of thermal expansion (in m/m.K) for the material over the given temperature ranges:

a)  0oK to 0oC,
b)  0oC to 820oC.

Suppose that thermal energy of the system is 3kT/2 where k is Boltzman’s constant k = 1.381 x 10-23 J/K.

problem: Gallium arsenide (GaAs) has the zinc blende structure. The gallium atoms are in FCC packing and the arsenic atoms occupy half the tetrahedral sites. Compute the density of Gallium arsenide (GaAs) by using the given data.

         Covalent Radius    Atomic Mass
 Ga    1.26 Ångstroms     69.7 g/mole
 As    1.19 Ångstroms     74.9 g/mole

Avogadro’s number (NAv) is 6.02 x 1023 atoms per mole.

problem: Using the phase diagram below for the copper-silver system, find out:

i) The phases present

ii) The composition (wt % Cu) of those phases and

iii) The amount (wt %) of each phase for:

a) Copper-silver alloy (70 wt % copper) at 900 o
b) Copper-silver alloy (70 wt % copper) at 600 o
c) Copper-silver alloy (5 wt % copper) at 800 oC

2131_phase diagram of silver copper.jpg

Other Engineering, Engineering

  • Category:- Other Engineering
  • Reference No.:- M9297

Have any Question? 


Related Questions in Other Engineering

Electronics i and labbridge rectifierintroductionthe lab is

Electronics I and Lab Bridge Rectifier Introduction: The lab is based on the previous lab from week 2 on half-wave and full-wave rectifiers and taking that knowledge to build a bridge rectifier. Materials and Equipment: ...

1given the following transfer function modelsy1su1s g11s

1. Given the following transfer function models: y 1 (s)/u 1 (s) = g 11 (s) = 2/(s+3) y 1 (s)/u 2 (s) = g 12 (s) = -1/(s+1) y 2 (s)/u 1 (s) = g 21 (s) = -1/(s+7) y 2 (s)/u 2 (s) = g 22 (s) = 0.5/(s+4) a) Draw the 2x2 ope ...

Design a voltage-divider biased common source amplifier

Design a voltage-divider biased common source amplifier with no bypass(JFET) Design a voltage-divider biased common source amplifier with no bypass to the following specifications: Av (overall) = -3, Rsrc = 30 kΩ, Rin = ...

Project security enabled parallel connection for

Project: Security enabled parallel connection for intercom Project objectives The prime objective of the project is to describe how to generate many of the signals and used it to the concern field of communication system ...

Ac models1the impedance of a capacitor is inversely

AC Models 1. The impedance of a capacitor is inversely proportional to the frequency and the capacitor effectively blocks dc voltage. a. True b. False 2. A coupling capacitor couples an ac signal into an amplifier withou ...

Technical comminucations englpart 1take-away please respond

Technical Comminucations ENGL Part 1 "Take-Away" Please respond to the following: Imagine it is 10 years from today. Identify two things you learned in this course that you couldn't have imagined being successful without ...

Biomedical engineering modelling amp analysis assignment

Biomedical Engineering Modelling & Analysis Assignment - Aim and Learning Outcomes: To use appropriate software to solve a set of differential equations related to a topical engineering problem and use the solutions to m ...

Assignmentan embedded system is any electronic system that

Assignment An embedded system is any electronic system that uses a CPU chip but that is not a general-purpose workstation, desktop, or laptop computer. It is a specialized computer system that is part of a larger system ...

Labintroductionweek 2 lab is based on half-wave and

Lab: Introduction: Week 2 lab is based on half-wave and full-wave rectifiers. Rectifiers are widely used in power supplies to provide the required DC voltage. Please review the following videos before getting started wit ...

The presentation should cover the followingslide show give

The presentation should cover the following; Slide show Give information on structure Recalls on any appliances 4 questions you would want to ask the firefighters and homeowner hypothesis 10-15 minutes nfpa 921 worksheet ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro