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THE VARIATION OF MOLAR ISOBARIC HEAT CAPACITY, MOLAR ENTROPY AND MOLAR ENTHALPY IN THE IDEAL GAS STATE AND OF THE ISOTHERMAL ENTHALPY-PRESSURE COEFFICIENT, SECOND VIRIAL COEFFICIENT AND SPEED OF SOUND AT THE ZERO-PRESSURE LIMIT
Table 1 THE VARIATION OF MOLAR ISOBARIC HEAT CAPACITY, MOLAR ENTROPY AND MOLAR ENTHALPY IN THE IDEAL GAS STATE AND OF THE ISOTHERMAL ENTHALPY-PRESSURE COEFFICIENT, SECOND VIRIAL COEFFICIENT AND SPEED OF SOUND AT THE ZERO-PRESSURE LIMIT
Notes: 1. In this table the molar entropy is given a value of zero at 298.15 K and 1 atm (0.101 325 'Pa) in the ideal gas state.
S `d (298.15 K, 1 atm) — Sic(0K) = 222.965J K-lmol-1 . 2. In this table the molar enthalpy is given a value of zero at 298.15 K in the ideal gas state. td H (298.15 K) — H id( OK ) = 9 180J mo1-1 , H
`d
(298.15 K ) — H "(0 K ) = 39 404 J mol-1.
Table 1
70
T /K
Cp / J K -1 mol -1
180 190 200 210 220
31.15 31.43 31.71 31.99 32.25
230 240 250 260 270
Sid -
/J K
-i
i mol
fax /aP >,. /J moM /cm3 mol -1 x ~d
B /cm 3 moM
w /ms
16.42 14.73 13.11 11.56 10.07
-
3859 3547 3231 2912 2591
- 530.3 - 507.9 - 483.1
169.7 174.0 178.3 182.4 186.4
32.51 32.75 32.98 33.20 33.42
- 8.63 - 7.24 -5.90 - 4.60 - 3.34
-
2267 1941 1612 1281 - 948
-991.4 -959.2
- 457.5 - 431.9 -407.0 - 383.0 - 360.2
190.4 194.2 198.0 201.7 205.3
273.15 280 290 298.15 300
33.48 33.61 33.80 33.95 33.98
- 2.95 - 2.12 -.94 0 .21
- 843 - 613 - 276 0 63
-948.4 -924.2 -888.0 -858.1 -851.3
-
353.3 338.7 318.4 302.8 299.4
206.4 208.9 212.4 215.2 215.8
310 320 330 340 350
34.15 34.31 34.46 34.60 34.74
1.33 2.41 3.47 4.50 5.51
404 746 1090 1435 1782
-815.0 -779.3 -744.6 -711.2 -679.1
- 281.6 - 265.0 -249.4 - 234.9 - 221.4
219.2 222.5 225.8 229.1 232.3
360 370 380 390 400
34.86 34.98 35.09 35.20 35.30
6.49 7.44 8.38 9.29 10.18
2130 2479 2829 3181 3533
-648.3 -618.9 -591.0 -564.4 -539.1
- 208.8 - 197.0 -185.9 -175.6 -166.0
235.4 238.6 241.6 244.7 247.7
405 410 415 420 425
35.35 35.40 35.44 35.49 35.53
10.62 11.06 11.49 11.91 12.33
3710 3887 4064 4241 4419
-526.9 -515.1 -503.5 -492.3 -481.3
-161.4 - 157.0 - 152.7 - 148.5 - 144.5
249.2 250.7 252.1 253.6 255.1
430 435 440 445 450
35.57 35.62 35.66 35.69 35.73
12.75 13.16 13.57 13.97 14.37
4596 4774 4953 5131 5310
-470.7 -460.3 -450.2 -440.3 -430.7
- 140.6 - 136.8 -133.1 -129.6 - 126.2
256.5 258.0 259.4 260.8 262.2
460 470 480 490 500
35.81 35.87 35.94 36.00 36.06
15.15 15.93 16.68 17.42 18.15
5667 6026 6385 6744 7105
-412.3 -394.8 -378.1 -362.4 -347.4
- 119.6 - 113.4 - 107.6 -102.1 -97.0
265.1 267.8 270.6 273.3 276.0
-
Table 1 - continued T /K
Hid Sid Cp -1 -1 /J K mol /J K mol /J mol-i
fax /aP >,. B w /cm3 mol -1 /cm3 mol -1 /m s
525 550 575 600 625
36.20 36.32 36.43 36.52 36.61
19.91 21.60 23.22 24.77 26.26
8008 8915 9824 10736 11650
-313.1 -282.8 -256.0 -232.3 -211.1
-85.3 -75.2 -66.4 -58.7 -51.9
282.7 289.2 295.6 301.8 307.9
650 675 700 750 800
36.68 36.75 36.81 36.91 36.99
27.70 29.09 30.42 32.97 35.35
12566 13484 14404 16247 18094
-192.2 -175.3 -160.1 -134.1 -112.8
-45.9 -40.6 -35.9 -27.9 -21.6
313.9 319.8 325.6 336.9 347.9
850 900
37.06 37.11
37.60 39.72
19946 21800
-95.2 -80.6
-16.4 -12.2
358.5 368.8
71
Notes: 1. In this table the molar entropy is given a value of zero at 298.15 K and 1 atm (0.101 325 'Pa) in the ideal gas state.
S `d (298.15 K, 1 atm) — Sic(0K) = 222.965J K-lmol-1 . 2. In this table the molar enthalpy is given a value of zero at 298.15 K in the ideal gas state. td H (298.15 K) — H id( OK ) = 9 180J mo1-1 , H
`d
(298.15 K ) — H "(0 K ) = 39 404 J mol-1.
Table 1
70
T /K
Cp / J K -1 mol -1
180 190 200 210 220
31.15 31.43 31.71 31.99 32.25
230 240 250 260 270
Sid -
/J K
-i
i mol
fax /aP >,. /J moM /cm3 mol -1 x ~d
B /cm 3 moM
w /ms
16.42 14.73 13.11 11.56 10.07
-
3859 3547 3231 2912 2591
- 530.3 - 507.9 - 483.1
169.7 174.0 178.3 182.4 186.4
32.51 32.75 32.98 33.20 33.42
- 8.63 - 7.24 -5.90 - 4.60 - 3.34
-
2267 1941 1612 1281 - 948
-991.4 -959.2
- 457.5 - 431.9 -407.0 - 383.0 - 360.2
190.4 194.2 198.0 201.7 205.3
273.15 280 290 298.15 300
33.48 33.61 33.80 33.95 33.98
- 2.95 - 2.12 -.94 0 .21
- 843 - 613 - 276 0 63
-948.4 -924.2 -888.0 -858.1 -851.3
-
353.3 338.7 318.4 302.8 299.4
206.4 208.9 212.4 215.2 215.8
310 320 330 340 350
34.15 34.31 34.46 34.60 34.74
1.33 2.41 3.47 4.50 5.51
404 746 1090 1435 1782
-815.0 -779.3 -744.6 -711.2 -679.1
- 281.6 - 265.0 -249.4 - 234.9 - 221.4
219.2 222.5 225.8 229.1 232.3
360 370 380 390 400
34.86 34.98 35.09 35.20 35.30
6.49 7.44 8.38 9.29 10.18
2130 2479 2829 3181 3533
-648.3 -618.9 -591.0 -564.4 -539.1
- 208.8 - 197.0 -185.9 -175.6 -166.0
235.4 238.6 241.6 244.7 247.7
405 410 415 420 425
35.35 35.40 35.44 35.49 35.53
10.62 11.06 11.49 11.91 12.33
3710 3887 4064 4241 4419
-526.9 -515.1 -503.5 -492.3 -481.3
-161.4 - 157.0 - 152.7 - 148.5 - 144.5
249.2 250.7 252.1 253.6 255.1
430 435 440 445 450
35.57 35.62 35.66 35.69 35.73
12.75 13.16 13.57 13.97 14.37
4596 4774 4953 5131 5310
-470.7 -460.3 -450.2 -440.3 -430.7
- 140.6 - 136.8 -133.1 -129.6 - 126.2
256.5 258.0 259.4 260.8 262.2
460 470 480 490 500
35.81 35.87 35.94 36.00 36.06
15.15 15.93 16.68 17.42 18.15
5667 6026 6385 6744 7105
-412.3 -394.8 -378.1 -362.4 -347.4
- 119.6 - 113.4 - 107.6 -102.1 -97.0
265.1 267.8 270.6 273.3 276.0
-
Table 1 - continued T /K
Hid Sid Cp -1 -1 /J K mol /J K mol /J mol-i
fax /aP >,. B w /cm3 mol -1 /cm3 mol -1 /m s
525 550 575 600 625
36.20 36.32 36.43 36.52 36.61
19.91 21.60 23.22 24.77 26.26
8008 8915 9824 10736 11650
-313.1 -282.8 -256.0 -232.3 -211.1
-85.3 -75.2 -66.4 -58.7 -51.9
282.7 289.2 295.6 301.8 307.9
650 675 700 750 800
36.68 36.75 36.81 36.91 36.99
27.70 29.09 30.42 32.97 35.35
12566 13484 14404 16247 18094
-192.2 -175.3 -160.1 -134.1 -112.8
-45.9 -40.6 -35.9 -27.9 -21.6
313.9 319.8 325.6 336.9 347.9
850 900
37.06 37.11
37.60 39.72
19946 21800
-95.2 -80.6
-16.4 -12.2
358.5 368.8
71