MSE 2103 Thermodynamics of Materials I
Problem Set II
1) Calculate the entropy of 1 mole of Cu2S at 800 C and the entropy change when Cu2S is cooled
from 800 C to room temperature
So(Cu2S)=119.6 J/mol.K, CP= 81.6 J/mol.K
2) Calculate the standard entropy
2015 1 9
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Two years ago, Green County Library decided [ staying / to stay ] open until 8 p.m. every Thursday. This
was to make library services [ available / availably ] to people [ whom / for whom ] evening was the
only convenient time to visit.
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M2794.001000 Solid Mechanics
Professor Youn, Byeng Dong
Homework 6 [due date : 05/03]
1.
For the flat tension bar with stepped cross section shown Figure, the fillets are quarter circles of radius
r = 10 mm. Let D = 80 mm and t = 20 mm for this bar.
( = =
M2794.001000 Solid Mechanics
Professor Youn, Byeng Dong
Homework 1 [due date : 03/16]
1.
Each member in the pin-jointed planar truss in Fig 1 is 2 m long. The truss is attached to a firm base by
a frictionless pin at A, and it rests on a roller support at
M2794.001000 Solid Mechanics
Professor Youn, Byeng Dong
Homework 3 [due date : 03/30 10:45, 301-215]
1.
Sketch shear-force and bending-moment diagrams. Indicate sign convention employed and label
important values.
2.
Sketch the diagram of bending moment a
M2794.001000 Solid Mechanics
Professor Youn, Byeng Dong
Homework 4 [due date : 04/05]
1.
The gate AB blocks a 2.4 m-wide opening in a freshwater reservoir.
Find the reaction force F on the support at A.
2.
Drive equilibrium equation in general stress stat
M2794.001000 Solid Mechanics
Professor Youn, Byeng Dong
Homework5 [due date : 04/12 ]
1.
Point A on the surface of a machine component is subjected to plane stress. The stresses
x , y , xy , x ' and x ' y ' are known, but the angle xx ' and the normal st
M2794.001000 Solid Mechanics
Professor Youn, Byeng Dong
Homework 2 [due date : 03/23 Before Class, 301-215]
1.
A load P is supported at B by two rods of the same material and
the same cross-sectional area A (Figure 1). Determine the
horizontal and vertica
Chapter 4
The statistical
interpretation of entropy
1
4.1 Introduction
From the formal statement of the Second Law of
Thermodynamics, it is difficult to assign a physical
significance or a physical quality to entropy. (different from
internal energy, U)
Introduction to the
Thermodynamics of
Materials
Chapter 1
Introduction and definition
of terms
1
1.1 INTRODUCTION
Thermodynamics is concerned with the
behavior of matter.
Matter is anything that occupies space
The Matter, which is the subject of a
ther
Chapter 6
Heat capacity, enthalpy, & entropy
1
6.1 Introduction
In this lecture, we examine the heat capacity as a function of temperature, compute the
enthalpy, entropy, and Gibbs free energy, as functions of temperature.
We then begin to assess phase eq
Chapter 3
The second Law of
Thermodynamics
3.1 Introduction
The first law: U = q W
: Work and heat determine the change in U.
Is there a way to do maximum work during the change of state?
Answer: reversible or irreversible process
Introduction of a state
Ch7
PHASE EQUILIBRIUM IN A
ONE-COMPONENT SYSTEM
1
7.1 Introduction
Temp. of a sys
= a measure of the potential at intensity of heat in the system.
Pressure of a sys
= a measure of its tendency toward movement
Chemical potential of a sys
= a measure of its
3.7 The Reversible Isothermal Compression of an Ideal Gas
When the compression is conducted isothermally (U=0), reversibly (S=0),
Thus, the work done on the gas = the heat withdrawn from the gas
= the heat entering the reservoir = - qrev
(?! max min)
<0
<
Chapter 9
The Behavior of Solutions
1
9.2 Raoults Law and Henrys Law
(1) Initially evacuated vessel at T
liq. A
(2) spontaneously evaporate until P in the vessel
reaches the saturated vapor pressure of liq. A, pA, at T
(3) a dynamic equilibrium establishe
Chapter 2
THE FIRST LAW OF
THERMODYNAMICS
2.1 Introduction
Definition of T : The property that indicates the
direction of the flow of energy through a
thermally conducting, rigid wall
Thermal equilibrium - no change of state occurs when two
objects are in
Chapter 5
AUXILIARY FUNCTIONS
1
5.1 Introduction
The main power of the thermodynamic method stems from
its provision of criteria for equilibrium in materials systems
S and V are an inconvenient choice of independent
variables.
Using P and T as the inde
SOLID MECHANICS
3. FORCES AND MOMENTS TRANSMITTED BY SLENDER MEMBERS
DO-NYUN KIM
446.201A SOLID MECHANICS
1
Outline
446.201A SOLID MECHANICS
2
3.1 Introduction
Slender members
Any part whose length is much greater (say at
least five times greater) than
SOLID MECHANICS
1. FUNDAMENTAL PRINCIPLES OF MECHANICS
DO-NYUN KIM
446.201A SOLID MECHANICS
1
Solid mechanics
Solid mechanics is the branch of continuum mechanics that
studies the behavior of solid materials, especially their motion
and deformation under
SOLID MECHANICS
2. INTRODUCTION TO MECHANICS OF
DEFORMABLE BODIES
DO-NYUN KIM
446.201A SOLID MECHANICS
1
Outline
446.201A SOLID MECHANICS
2
2.1 Analysis of deformable bodies
Identification (reasonably complete description of a system) &
Simplification (u
Expressive Driver-Vehicle Interface Design
Engaging users in the early phases of the design process:
Attitudes, Yeon Hwang, Kent Larson, Ryan Chin, Henry Holtzman
Jee concerns and challenges from industrial
Media Laboratory
practice
Massachusetts Institut
Proceedings of the 4th International Conference on Automotive User Interfaces and
Interactive Vehicular Applications (AutomotiveUI '12), October 1719, 2012, Portsmouth, NH, USA
Pedal Misapplications by Older Drivers Induced by
Difficulty with Inhibition F