TABLE 19.1 Specific Heats of Some Substances at 25°C and Atmospheric Pressure Specific Heat (J/kg - °C) Specific Heat (J/kg . °C) Substance Substance Elemental solids Other solids Aluminum 900 Brass 380 1 830 837 Beryllium Cadmium Сopper Glass 230 387 Ice (-5°C) Marble 2 090 860 Germanium 322 Wood 1 700 Gold 129 Liquids Alcohol (ethyl) Mercury Water (15°C) Iron 448 2 400 128 703 Lead 140 Silicon 4 186 Silver 234 Gas Steam (100°C) 2 010 Note: To convert values to units of cal/g. °C, divide by 4 186.
TABLE 19.1 Specific Heats of Some Substances at 25°C and Atmospheric Pressure Specific Heat (J/kg - °C) Specific Heat (J/kg . °C) Substance Substance Elemental solids Other solids Aluminum 900 Brass 380 1 830 837 Beryllium Cadmium Сopper Glass 230 387 Ice (-5°C) Marble 2 090 860 Germanium 322 Wood 1 700 Gold 129 Liquids Alcohol (ethyl) Mercury Water (15°C) Iron 448 2 400 128 703 Lead 140 Silicon 4 186 Silver 234 Gas Steam (100°C) 2 010 Note: To convert values to units of cal/g. °C, divide by 4 186.
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 20.7OQ: The specific heat of substance A is greater than that of substance B. Both A and B are at the same...
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An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10.0°C. Two metallic blocks are placed into the water. One is a 50.0-g piece of copper at 80.0°C. The other has a mass of 70.0 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20.0°C. (a) Determine the specific heat of the unknown sample. (b) Using the data as shown, can you make a positive identification of the unknown material? Can you identify a possible material? (c) Explain your answers for part (b).
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