Ask Question, Ask an Expert

+61-413 786 465

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

Homework - risk and decision management1 you are working

Homework - Risk and Decision Management 1) You are working program X. The total budget allocated to the program is $100 M and it is to be completed in 24 mo. range (R) and passenger capacity (C) are two key performance p ...

Part 1configure verify and troubleshoot wan links and ip

Part 1 Configure, verify and troubleshoot WAN links and IP services Answer to all questions below: 1. What is the name of the Safe Work Australia code of practise that provides guidance on how to manage the risks of elec ...

Engineering analysis assignment -for every problem provide

Engineering Analysis Assignment - For every problem, provide The MATLAB script/function files that solve the problems. Problem 1: Plot the function f(t) = (x+5) 2 /(4+3x 2 ) for -3 ≤ x ≤ 5. using plot command. Use the ar ...

Operations engineering assignment -please select only one

Operations Engineering Assignment - Please select only one of the following case studies for your assignment: CASE A. Tesla Motors Tesla is an innovative manufacturer that designs, assemble and sells fully electric vehic ...

Select a risk problem from the list below and prepare a

Select a risk problem from the list below and prepare a risk management plan in accordance with AS/NZS ISO 31000:2009. Please ensure that: - Establish the context clearly, in accordance with the Standard; - Define your s ...

Load fault level analysis amp protection design of a remote

LOAD, FAULT LEVEL ANALYSIS & PROTECTION DESIGN OF A REMOTE AREA MICROGRID Assignment Please undertake the following analyses: 1. Calculate the 3-phase fault levels on Bus 2, Bus 3 and Bus 4 with the main supply connected ...

Projection of planes1 a regular pentagon of 25 mm side has

Projection of Planes 1. A regular pentagon of 25 mm side has one side on the ground. Its plane is inclined at 45° to H.P. and perpendicular to the V.P. Draw its projections. 2. Draw the projection of a circle of 50 mm di ...

Assignment 11 what is the purpose of ore reserve and

ASSIGNMENT 1 1. What is the purpose of ore reserve and resource estimation? Why are resource and reserve estimates important to the mining industry? 2. What is meant by ore? What is meant by the term waste? How is the di ...

Conceptual design of forced-free-mixed convection

Conceptual Design of Forced-Free-Mixed Convection Experiment This assessment is to be completed individually. 1. Learning Outcomes: - Develop a basic ability to conceptually design an experimental apparatus - Use theory ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As