Spring 2012
ME 201
Thermodynamics
Homework #9 Solutions
1. (10 pts) A rigid wall, insulated container is divided into two regions by a removable wall. One
region contains 0.1 lbm of CO at 100F, while the other region contains 0.2 lbm of CO at 150F.
A stir
Spring 2006
Thermodynamics
Homework 13 Solution 1. A reversible process has been defined as a process, which having taken place, can be reversed and in so doing leaves no change in either the system or the surroundings. Six restrictions were imposed
Spring 2012
ME 201
Thermodynamics
Homework 13 Solution
1. (5 pts) A reversible process has been defined as a process, which having taken place, can be
reversed and in so doing leaves no change in either the system or the surroundings. Six restrictions
wer
Spring 2006
Thermodynamics
Homework #8 Solution 1. Ten grams of water at 15C and 100 kPa completely fills a balloon. The balloon is then heated on the stove top at constant pressure until the temperature reaches 125C. Determine the boundary work in
Spring 2006
Thermodynamics
Homework 13 Due Friday, March 17, 2006 1. A reversible process has been defined as a process, which having taken place, can be reversed and in so doing leaves no change in either the system or the surroundings. Six restric
Spring 2012
ME 201
Thermodynamics
Homework #5 Solutions
1. (5 pts) Calculate the entropy change for N2 as it goes from 250 K and 1000 kPa to 1300 K and 60
kPa.
Solution:
Substance Type: Ideal Gas (N2)
Problem Type: Process
State2
State 1
T1 = 250 K
T2 = 1
Spring 2012
ME 201
Thermodynamics
Homework #10 Solutions
1. (30 pts) Three of the process that occur in the piston cylinder device of an internal combustion
engine are:
Process 1: Constant pressure heat addition during which the volume doubles
Process 2:
Spring 2012
ME 201
Thermodynamics
Homework #8 Solution
1. Ten grams of water at 15C and 100 kPa completely fills a balloon. The balloon is then heated
on the stove top at constant pressure until the temperature reaches 125C. Determine the
boundary work in
Spring 2006
Thermodynamics
Homework #8 Due Wednesday, 2/15/06 1. Ten grams of water at 15C and 100 kPa completely fills a balloon. The balloon is then heated on the stove top at constant pressure until the temperature reaches 125C. Determine the bou
Spring 2006
Thermodynamics
Homework 23, Due Friday, May 5, 2006 Extra Credit worth 10 points 1. Complete the following table for the properties of an air/water vapor mixture. Tdry bulb (C) 15 35 10 20 . Twet bulb (C) . 25 10 . . Rel.Hum. (%) 20 . .
Spring 2006
Thermodynamics
Homework #9 Solutions 1. A rigid wall, insulated container is divided into two regions by a removable wall. One region contains 1 lbm of kerosene at 100F, while the other region contains 2 lbm of kerosene at 150F. A stirre
ME 201
Thermodynamics
PistonCylinder Cycles (Internal Combustion Engine Cycles) Most internal combustion engines can be modeled as one of three piston/cylinder cycles. At the start of these cycles, the piston is out as far as possible, so that we ha
ME 382  Fall 2015
Homework 2
(Due on Friday, September 25, 2015)
The questions identified with * are intended to be more challenging / interesting
The answers may have been rounded.
1.
A set of strain gauges on the free surface of
ME 382 Fall 2015
Homework 4
(Due Friday, October 9, 2015)
The questions identified with * are intended to be more challenging / interesting
The answers may have been rounded.
1.
Use the phase diagram for copper and platinum shown below to answer
this ques
Spring 2012
ME 201
Thermodynamics
Exam #1 Solutions
Directions: Work all three (3) problems. The exam is open notes and open text book. All
problems have equal weight.
Problem 1
Consider the operation of a jet engine. Air enters the engine at 45,000 kg/s.
ME 382 Fall 2015
Homework 5
(Due Friday, October 23, 2015)
The questions identified with * are intended to be straightforward applications of what
has been covered in class
1.*
(a) Distinguish between a screw dislocation and an edge dislocation in terms
ME 320 Winter 2016
Eric Johnsen
Due: Wednesday February 3 (in lecture)
Problem set #3
Problem 1: 3.21
Problem 2: 3.32
Problem 3: 3.51
1
Problem 4: 3.52
Problem 5: 3.63
2
ME 320 Winter 2016
Eric Johnsen
Due: Wednesday February 10 (in lecture)
Problem set #4
Problem 1: F & M 3.71
Problem 2: F & M 3.77
Problem 3: F & M 3.101
Problem 4: F & M 3.103
1
Problem 5: F & M 2.21
2
ME201_S1 FS15 HW4  Example Problems
a) Water vapor initially at 10 bar and 400C is contained within a pistoncylinder
assembly. The water is cooled at constant volume until its temperature is 150C. The
water is then condensed isothermally to saturated li
ME201_S2_FS16 HW4  Due Wednesday 10/05
*show your work (equations before plugging in), and list any assumptions you are
making.
*check your units
*Graded based on earnest effort on a 3point scale
1. A mixture of liquid H2O and H2O vapor inside a piston
ME2OI FS15 HW1
Due Wednesday 09/16
*show your work
*check your units!
*oneproblem will be graded on a 03 point scale, as dictated by rolling a die
1) A pistoncylinder assembly contains carbon monoxide (CC) gas at an initial pressure of 1.5
MPa. The initia
ME 320 Winter 2016
Eric Johnsen
Due: Wednesday January 27 (in lecture)
Problem set #2
Problem 1: 2.48
Problem 2: FM 2.66
Problem 3: 2.78
1
Problem 4: 3.15
Problem 5
Given atmospheric pressure at sea level and the radius of the earth (6370 km), determine t
ME 320 Winter 2016
Eric Johnsen
Due: Wednesday January 20 (in lecture)
Problem set #1
Problem 1: FM 1.35
Problem 2
The temperature and pressure at the surface of Mars during a Martian spring day were determined
to be 50o C and 900 Pa.
1. Determine the den
ME 320 Winter 2016
Eric Johnsen
Due: Wednesday March 16 (in lecture)
Problem set #7
Problem 1: F & M 4.111
Problem 2: F & M 4.133
Problem 3: F & M 4.156
Problem 4: F & M 4.181
1
Problem 5: F & M 4.203
2
3. A refrigerator receives a power input of 0.2 kW while rejectingenergy by heat transfer to the
surroundings at a rate of 0.6 kW. (6 points)
a) Determinethe rate at whichenergy is removed from the refrigerated space, in kW,
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2015 Fall
EECS 314
Homework problem 14
Students name: _ Discussion section # _
(Last, First; write legibly; use ink)
Problem 14 (100 points) Transformers in power distribution: Compare the cost
effectiveness of AC and DC systems
According to http:/www.eia
ME2OI_S2 FSI6 HW7 Due Wednesday 11102

*show your work (equations before plugging in), and list any assumptions you are making.
*check your units
*graded based on effort, not on accuracy
1) As shown in the figure, the working
system in a power cycle deve
40HtVY
ME2O1_S2_FS16 HW4 Due Wednesday 10/05
*show yourwork (equations beforeplugging in), and list any assumptions you are
making.
*check your units
*Graded based on earnest effort on a 3point scale
1. A mixture of liquid H20and 1120 vapor inside a pisto
ME2O1_FS16 Q4 11/02/2016
SHOW ALL WORK and LIST ASSUMPTIONS
NAME
As shown in the figure, you have developed a
miniature powercycle to use while ice fishing, based
on the steam from your hot coffee which is
channeled into a 1inlet, 1exit pipe. The steam
co
ME201_FS16 HW#5: ideal gases, control volumes
DUE Wednesday 10/19 (ignore problem numbers on scanned solutions,
they are posted here in the correct order)
1)
2)
3)
4)
5)
ME2O1
Fall 2016 Section 2
Midterm Exam #1
Instructions:
*Read the problems carefully
*Draw a diagram where appropriate
*LIST ALL ASSUMPTIONS
*check your units
*If you want partial credit use equations with symbolsbefore
plugging in.
*Box your answers
NAME
ME2O1_S1 FSI5 HW3 Due Wednesday 09/30
*show your work: draw a system, including the dashedline boundary, and list
any assumptions you are making.
*check your units
*one problem will be graded on a 03 point scale, as dictated by die roll
1. You are buildin