TABLE 20.2 Molar Specific Heats of Various Gases Molar Specific Heat (J/mol · K)* C, - C, y = C„/C, Gas C, C, Monatomic gases 8.33 8.33 1.67 1.67 Не 20.8 12.5 12.5 Ar 20.8 Ne 12.7 12.3 20.8 8.12 1.64 Kr 20.8 8.49 1.69 Diatomic gases H, N, 28.8 20.4 8.33 8.33 8.33 1.41 29.1 29.4 20.8 21.1 1.40 1.40 29.3 34.7 21.0 8.33 1.40 Cl, 25.7 8.96 1.35 Polyatomic gases CO, So, 37.0 28.5 8.50 1.30 40.4 35.4 31.4 27.0 27.1 9.00 1.29 8.37 1.30 CH, 35.5 8.41 1.31 * All values except that for water were obtained at 300 K.
TABLE 20.2 Molar Specific Heats of Various Gases Molar Specific Heat (J/mol · K)* C, - C, y = C„/C, Gas C, C, Monatomic gases 8.33 8.33 1.67 1.67 Не 20.8 12.5 12.5 Ar 20.8 Ne 12.7 12.3 20.8 8.12 1.64 Kr 20.8 8.49 1.69 Diatomic gases H, N, 28.8 20.4 8.33 8.33 8.33 1.41 29.1 29.4 20.8 21.1 1.40 1.40 29.3 34.7 21.0 8.33 1.40 Cl, 25.7 8.96 1.35 Polyatomic gases CO, So, 37.0 28.5 8.50 1.30 40.4 35.4 31.4 27.0 27.1 9.00 1.29 8.37 1.30 CH, 35.5 8.41 1.31 * All values except that for water were obtained at 300 K.
College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Examine the data for polyatomic gases as shown and give a reason why sulfur dioxide has a higher specific heat at constant volume than the other polyatomic gases at 300 K.
Transcribed Image Text:TABLE 20.2 Molar Specific Heats of Various Gases
Molar Specific Heat (J/mol · K)*
C, - C,
y = C„/C,
Gas
C,
C,
Monatomic gases
8.33
8.33
1.67
1.67
Не
20.8
12.5
12.5
Ar
20.8
Ne
12.7
12.3
20.8
8.12
1.64
Kr
20.8
8.49
1.69
Diatomic gases
H,
N,
28.8
20.4
8.33
8.33
8.33
1.41
29.1
29.4
20.8
21.1
1.40
1.40
29.3
34.7
21.0
8.33
1.40
Cl,
25.7
8.96
1.35
Polyatomic gases
CO,
So,
37.0
28.5
8.50
1.30
40.4
35.4
31.4
27.0
27.1
9.00
1.29
8.37
1.30
CH,
35.5
8.41
1.31
* All values except that for water were obtained at 300 K.
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