Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 18, Problem 25ICA
A phase diagram for carbon and platinum is shown. It is assumed the lines shown are linear, and the mixture has the following characteristics. The endpoints of the division line between these two phases are labeled on the diagram.
■ Below 1700 degrees Celsius, it is a mixture of solid platinum (Pt) and graphite (G).
■ Above 1700 degrees Celsius, there are two possible phases: a Liquid (L) phase and a Liquid (L) + phase (G).
Write a program to determine the phase. The program should ask the user to enter the weight percent carbon and the temperature in degrees Celsius. Call the phases “Pt + G,” “L,” and “L + G,” for simplicity. If the point falls directly on the T = 1700°C line, include the point in the “Pt + G” phase. If the point falls directly on the L, L + Gline, include the point in the “L + G” phase.
Store the phase as text in a variable. The equation of the line dividing the L and L + G phases must be found in the program using polyfit. The program should produce a formatted output statement to the command window. Similar to “For X.XX weight percent carbon and a temperature of YYY degrees Celsius, the phase is PHASE” where x.xx, yyy and PHASE are replaced by the actual values formatted as shown.
The following partial code is designed to implement this program. You are to fill in the missing sections of code as appropriate to complete the program.
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The following drawing shows the phase diagram at constant pressure for two liquids (A and B).
When 30 g of pure A and 70 g of pure B are mixed:
a) Reason what the diagram looks like and identify each part.
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c) What is the amount of distillate at 130C°?
160
P= Tatm
150
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O 130
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The given figure shows the pressure-temperature phase diagram for H2O. Apply the Gibbs phase rule at points A,B, and C, and specify the number of degrees of freedom at each of the points, that is, the number of externally controllable variables that need to be specified to completely define the system.
Under extreme pressures, even very familiar substances can form unusual solid phases. Below is the phase diagram for H2O, expanded to include those phases that are found at high pressures. The following two questions refer to that diagram.
For the first question, select every statement that is true about the relative densities of different phases of water.
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e. "Traditional" ic (solid phase lh) is more dense than liquid water
Chapter 18 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 18.1 - Create a written algorithm that determines the...Ch. 18.1 - Prob. 2CCCh. 18.1 - Create a flowchart that determines the dose of a...Ch. 18.1 - Create a flowchart that determines the state of...Ch. 18.2 - Prob. 5CCCh. 18.2 - Prob. 6CCCh. 18.3 - Assume the following variables have been defined:...Ch. 18.3 - Prob. 8CCCh. 18.3 - Write a short section of MATLAB code that will...Ch. 18.3 - Prob. 10CC
Ch. 18.3 - Prob. 11CCCh. 18.3 - Assume a user has responded to the question "Do...Ch. 18.3 - Assume a user has responded to the question "Do...Ch. 18.4 - Write MATLAB code to represent the following...Ch. 18.4 - Write MATLAB code to represent the following...Ch. 18.4 - Write a MATLAB function named sumTtUp that will...Ch. 18.4 - Prob. 17CCCh. 18.5 - A device constructed to throw various objects can...Ch. 18.6 - Prob. 19CCCh. 18.6 - Prob. 20CCCh. 18.7 - Write MATLAB code to modify the previous gravity...Ch. 18.7 - Write MAT LAB code using try-catch to ask the user...Ch. 18 - Create a written algorithm and flowchart to...Ch. 18 - The Occupational Safety Health Administration...Ch. 18 - Prob. 3ICACh. 18 - Create a flowchart that represents the following...Ch. 18 - Create an algorithm to classify a given altitude...Ch. 18 - Answer the following questions. a. For what...Ch. 18 - Answer the following questions. a. For what...Ch. 18 - For each task listed, write a single MAT LAB...Ch. 18 - Prob. 9ICACh. 18 - What is stored in variable A after each of the...Ch. 18 - What will be displayed by the following code in...Ch. 18 - Ask users to enter a matrix that could be any size...Ch. 18 - A menu is generated using the following code:...Ch. 18 - A menu is generated using the following code:...Ch. 18 - Write a program using if-elseif-else statements...Ch. 18 - Write a program using switch-case statements that...Ch. 18 - Prob. 17ICACh. 18 - Write a program that asks the user to enter the...Ch. 18 - Prob. 19ICACh. 18 - Assume you are required to generate the menus...Ch. 18 - Assume you are required to generate the menus...Ch. 18 - Prob. 22ICACh. 18 - Assume you are required to generate the menus...Ch. 18 - We go to a state-of-the-art amusement park. All...Ch. 18 - A phase diagram for carbon and platinum is shown....Ch. 18 - Prob. 27ICACh. 18 - Prob. 28ICACh. 18 - Prob. 29ICACh. 18 - The Apple TV is a personal video device created by...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Create an algorithm to determine whether a given...Ch. 18 - The specific gravity of gold is 19.3. Write a...Ch. 18 - An unmanned X-43A scramjet test vehicle has...Ch. 18 - A rod on the surface of Jupiter's moon Callisto...Ch. 18 - The Eco-Marathon is an annual competition...Ch. 18 - Assume a variable R contains a single number....Ch. 18 - Prob. 10RQCh. 18 - Create a program to determine whether a...Ch. 18 - Create a program to determine whether a given Mach...Ch. 18 - Humans can see electromagnetic radiation when the...Ch. 18 - For the protection of both the operator of a...Ch. 18 - Prob. 15RQCh. 18 - Prob. 17RQCh. 18 - Your function should use polyfit to determine the...Ch. 18 - Prob. 19RQCh. 18 - Prob. 20RQCh. 18 - The variable grade can have any real number value...Ch. 18 - Write a MATLAB program that will allow the student...Ch. 18 - One of the 14 NAE Grand Challenges is Engineering...Ch. 18 - Prob. 25RQ
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