If we know c of the object being heated (or cooled), we can measure the mass and the temperature change and calculate the heat absorbed (or released): q = c X mass X AT (6.7) Table 6.2 Specific Heat Capacities (c) of Some Elements, Compounds, and Materials c (J/g-K)* Elements Aluminum, Al 0.900 Graphite, C Iron, Fe 0.711 0.450 Соpper, Cu Gold, Au 0.387 0.129 Compounds 4.184 Water, H,O(1) Ethyl alcohol, 2.46 ()HOʻHƆ Ethylene glycol, (CH,OH),() Carbon tetrachloride, CCL,(1) 2.42 0.862 Solid Materials Wood 1.76 Cement 0.88 Glass 0.84 Granite 0.79 0.45 Steel *At 298 K (25°C).

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A layer of copper welded to the bottom of a skillet weighs 125 g. How much
heat is needed to raise the temperature of the copper layer from 25°C to 300.°C? The specific heat capacity (c) of Cu is given as shown.
Plan We know the mass (125 g) and c (0.387 J/g⋅K) of Cu and can find ΔT in °C, which equals ΔT in K. We then as shown to calculate the heat.

If we know c of the object being heated (or cooled), we can measure the mass
and the temperature change and calculate the heat absorbed (or released):
q = c X mass X AT
(6.7)
Transcribed Image Text:If we know c of the object being heated (or cooled), we can measure the mass and the temperature change and calculate the heat absorbed (or released): q = c X mass X AT (6.7)
Table 6.2 Specific Heat
Capacities (c) of Some Elements,
Compounds, and Materials
c (J/g-K)*
Elements
Aluminum, Al
0.900
Graphite, C
Iron, Fe
0.711
0.450
Соpper, Cu
Gold, Au
0.387
0.129
Compounds
4.184
Water, H,O(1)
Ethyl alcohol,
2.46
()HOʻHƆ
Ethylene glycol,
(CH,OH),()
Carbon tetrachloride,
CCL,(1)
2.42
0.862
Solid Materials
Wood
1.76
Cement
0.88
Glass
0.84
Granite
0.79
0.45
Steel
*At 298 K (25°C).
Transcribed Image Text:Table 6.2 Specific Heat Capacities (c) of Some Elements, Compounds, and Materials c (J/g-K)* Elements Aluminum, Al 0.900 Graphite, C Iron, Fe 0.711 0.450 Соpper, Cu Gold, Au 0.387 0.129 Compounds 4.184 Water, H,O(1) Ethyl alcohol, 2.46 ()HOʻHƆ Ethylene glycol, (CH,OH),() Carbon tetrachloride, CCL,(1) 2.42 0.862 Solid Materials Wood 1.76 Cement 0.88 Glass 0.84 Granite 0.79 0.45 Steel *At 298 K (25°C).
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