Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
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Textbook Question
Chapter 14.5, Problem 9P
The following data were collected in the laboratory to determine the specific heat of an unknown metal:
Mass of copper calorimeter | 153 g |
Specific heat of calorimeter | 0.092 cal/g °C |
Mass of water | 275 g |
Specific heat of water | 1.00 cal/g °C |
Mass of metal | 236 g |
Initial temperature of water and calorimeter | 16.2°C |
Initial temperature of metal | 99.6°0 |
Final temperature of calorimete, water, and metal | 22.7°C |
Find the specific heat of the unknown metal. Note: A calorimeter is usually a metal cup inside another metal cup that is insulated by the air between them (Fig. 14.13 ).
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|% error
Thermal energy lost = Thermal energy gained
Thermal energy Q = cmAt
%3D
%3D
Specific heat C
|Thermal energy lost by metal = Thermal energy gained by (water + calorimeter)
%3D
EmMm(tm-tf)=(ccatMeat +CwMw)(tp- to)
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CALCULATION
A 200 gram copper calorimeter contains 400 g of water at 25 °C. A metal specimen weighing 250 g is heated to a certain temperature and then plunged into the calorimeter. The final temperature of the mixture is 42 °C. If then specific heat of the metal specimen is 0.09 cal/(g-°C), find the initial temperature of the specimen just before it was plunged into the calorimeter
Chapter 14 Solutions
Applied Physics (11th Edition)
Ch. 14.1 - Find each temperature as indicated. 1. TF=77F,...Ch. 14.1 - Find each temperature as indicated. 2. TF=113F,...Ch. 14.1 - Find each temperature as indicated. 3. TF=257F,...Ch. 14.1 - Find each temperature as indicated. 4. TC=15C,...Ch. 14.1 - Find each temperature as indicated. 5. TC=145C,...Ch. 14.1 - Find each temperature as indicated. 6. TC=35C,...Ch. 14.1 - Prob. 7PCh. 14.1 - Prob. 8PCh. 14.1 - Find each temperature as indicated. 9. TC=95C,...Ch. 14.1 - Prob. 10P
Ch. 14.1 - Prob. 11PCh. 14.1 - Prob. 12PCh. 14.1 - Prob. 13PCh. 14.1 - Prob. 14PCh. 14.1 - Prob. 15PCh. 14.1 - Prob. 16PCh. 14.1 - Prob. 17PCh. 14.1 - The melting point of pure iron is 1505C. What...Ch. 14.1 - The melting point of mercury is -38.0F. What...Ch. 14.1 - A welding white heat is approximately 1400C. Find...Ch. 14.1 - The temperature in a crowded room is 85F. What is...Ch. 14.1 - The temperature of an iced tea drink is 5C. What...Ch. 14.1 - Prob. 23PCh. 14.1 - The melting point of ethyl alcohol is -179F. 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