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

Engineering analysis homework -for every problem provide

Engineering Analysis Homework - For every problem, provide The MATLAB script/function files that solve the problems. Problem 1: Write a script that solves the problem. For (c), show results of the evaluation of every ind ...

Control theory - lab reportsfor experiments 1 to 4 you must

Control Theory - Lab Reports For experiments 1 to 4 you must undertake the following: a) At the start of each section (including the pre-lab activities) there are a number learning outcomes. That is, what students should ...

Question - show that the zero-point energy of a simple

Question - Show that the zero-point energy of a simple harmonic oscillator does not contribute to its entropy or heat capacity, but does contribute to its energy and Helmholtz function.

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 ...

Register design a cpu register is simply a row of

Register design A CPU register is simply a row of flip-flops (i.e. SR, JK, T, etc) put side by side in an array to make the size of register required. For example, an 8 bit register has 8 flip-flops side by side for stor ...

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 ...

Mine safety amp environmental engineeringpart 1 questions1

Mine Safety & Environmental Engineering Part 1. Questions 1. Occupational health and safety is the primary factor that needs to be considered in the mining industry. Discuss this statement. 2. Define the following terms ...

A detailed review of spatial modulation and simulation

A Detailed Review of Spatial Modulation and Simulation Learning Outcomes a. Learn how to model mobile communication channels d. Discern knowledge development and directions on the recent advances in 4G to the research pr ...

Task 1using the lab kit design a circuit for the processor

Task 1: Using the lab kit, design a circuit for the processor to control the output of a connected 7-segment LED display device. You will be provided with a standard common anode 7-segment display of the type FND-507 (or ...

  • 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