Which material would be good to use as an insulator for a substance that needs to be kept at a high temperature and why? A air; because the gas molecules are spaced far apart which transfers heat large distances B concrete; because the tiny air pockets in the material hold the heat in well C iron; because the metallic atoms conduct heat well around the substance D water; because it has a high specific heat capacity value
Which material would be good to use as an insulator for a substance that needs to be kept at a high temperature and why? A air; because the gas molecules are spaced far apart which transfers heat large distances B concrete; because the tiny air pockets in the material hold the heat in well C iron; because the metallic atoms conduct heat well around the substance D water; because it has a high specific heat capacity value
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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Question
Question 14
Specific Heat Values of Materials |
|
Material |
Specific Heat Capacity (J/g °C) |
Air |
1.001 |
Iron |
0.450 |
Concrete |
0.230 |
Water |
4.178 |
Which material would be good to use as an insulator for a substance that needs to be kept at a high temperature and why?
A |
air; because the gas molecules are spaced far apart which transfers heat large distances |
|
B |
concrete; because the tiny air pockets in the material hold the heat in well |
|
C |
iron; because the metallic atoms |
|
D |
water; because it has a high specific heat capacity value |
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