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 8, Problem 52RQ
In a factory, various metal cylinders are forged and then plunged into a liquid to quickly cool the metal. The metal pieces vary in mass, and are produced at a temperature of 572 degrees Fahrenheit [°F]. The liquid used to cool the metal is glycerol. The initial temperature of glycerol is 20 degrees Celsius [°C]. At the end, glycerol and the metal will be at the same temperature. Determine the final temperature of the metal and the glycerol in units of degrees Fahrenheit [°F].
| Material Property | Glycerol | Cadmium |
| Specific heat | 221.9 J/(mol K) | 26 J/(mol K) |
| Specific gravity | 1.261 | 8.65 |
| Molecular weight | 92 g/mol | 112.4 g/mol |
| Volume | 1.25 gal | |
| Dimensions | Radius = 4 cm Height = 15 cm |
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Chapter 8 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 8.1 - The engine on a spacecraft nearing Mars can...Ch. 8.2 - The mass of the human brain is 1360 grams [g]....Ch. 8.2 - The mass of the human brain is 1360 grams [g]....Ch. 8.3 - Convert 50 grams per cubic centimeter [g/cm3] into...Ch. 8.3 - A 75-gram [g] cylindrical rod is measured to be 10...Ch. 8.4 - Determine the mass in units of grams of 0.025...Ch. 8.4 - Determine the amount in units of moles [mol] of 5...Ch. 8.5 - The temperature of dry ice is 109.3 degrees...Ch. 8.5 - The specific heat capacity of copper is 0.09...Ch. 8.6 - If the pressure is 250 feet of water [ft H2O],...
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