Calcium
- Formula: Ca2
- Molecular weight: 80.156
- IUPAC Standard InChI: InChI=1S/2Ca
- IUPAC Standard InChIKey: CPGKMLVTFNUAHL-UHFFFAOYSA-N
- CAS Registry Number: 12595-85-6
- Chemical structure:
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Gas Phase Heat Capacity (Shomate Equation)
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. - 1000. | 1000. - 6000. |
|---|---|---|
| A | 60.38432 | 22.76063 |
| B | -109.7292 | -1.526408 |
| C | 113.0785 | 0.318948 |
| D | -40.89262 | -0.002997 |
| E | -0.003522 | 1.250912 |
| F | 327.5834 | 339.7186 |
| G | 358.2964 | 293.4662 |
| H | 341.6374 | 341.6374 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in September, 1983 | Data last reviewed in September, 1983 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 298. | 36.61 | 257.2 | 257.2 | -0.00 |
| 300. | 36.50 | 257.4 | 257.2 | 0.07 |
| 400. | 31.95 | 267.3 | 258.6 | 3.48 |
| 500. | 28.66 | 274.0 | 261.0 | 6.50 |
| 600. | 26.41 | 279.0 | 263.6 | 9.25 |
| 700. | 24.95 | 283.0 | 266.1 | 11.81 |
| 800. | 24.03 | 286.2 | 268.4 | 14.26 |
| 900. | 23.41 | 289.0 | 270.6 | 16.63 |
| 1000. | 22.84 | 291.5 | 272.5 | 18.94 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 1000. | 22.80 | 291.5 | 272.5 | 18.93 |
| 1100. | 22.50 | 293.6 | 274.4 | 21.20 |
| 1200. | 22.25 | 295.6 | 276.0 | 23.43 |
| 1300. | 22.05 | 297.4 | 277.6 | 25.65 |
| 1400. | 21.88 | 299.0 | 279.1 | 27.85 |
| 1500. | 21.73 | 300.5 | 280.5 | 30.03 |
| 1600. | 21.61 | 301.9 | 281.8 | 32.19 |
| 1700. | 21.51 | 303.2 | 283.0 | 34.35 |
| 1800. | 21.42 | 304.4 | 284.1 | 36.49 |
| 1900. | 21.34 | 305.6 | 285.2 | 38.63 |
| 2000. | 21.27 | 306.7 | 286.3 | 40.76 |
| 2100. | 21.22 | 307.7 | 287.3 | 42.89 |
| 2200. | 21.17 | 308.7 | 288.2 | 45.01 |
| 2300. | 21.14 | 309.6 | 289.1 | 47.12 |
| 2400. | 21.11 | 310.5 | 290.0 | 49.23 |
| 2500. | 21.09 | 311.4 | 290.8 | 51.34 |
| 2600. | 21.08 | 312.2 | 291.7 | 53.45 |
| 2700. | 21.08 | 313.0 | 292.4 | 55.56 |
| 2800. | 21.08 | 313.8 | 293.2 | 57.67 |
| 2900. | 21.09 | 314.5 | 293.9 | 59.78 |
| 3000. | 21.11 | 315.2 | 294.6 | 61.89 |
| 3100. | 21.13 | 315.9 | 295.3 | 64.00 |
| 3200. | 21.17 | 316.6 | 295.9 | 66.11 |
| 3300. | 21.20 | 317.2 | 296.6 | 68.23 |
| 3400. | 21.25 | 317.9 | 297.2 | 70.36 |
| 3500. | 21.30 | 318.5 | 297.8 | 72.48 |
| 3600. | 21.36 | 319.1 | 298.4 | 74.62 |
| 3700. | 21.42 | 319.7 | 298.9 | 76.75 |
| 3800. | 21.49 | 320.3 | 299.5 | 78.90 |
| 3900. | 21.56 | 320.8 | 300.0 | 81.05 |
| 4000. | 21.64 | 321.4 | 300.6 | 83.21 |
| 4100. | 21.73 | 321.9 | 301.1 | 85.38 |
| 4200. | 21.82 | 322.4 | 301.6 | 87.56 |
| 4300. | 21.92 | 322.9 | 302.1 | 89.75 |
| 4400. | 22.03 | 323.4 | 302.5 | 91.94 |
| 4500. | 22.14 | 323.9 | 303.0 | 94.15 |
| 4600. | 22.26 | 324.4 | 303.5 | 96.37 |
| 4700. | 22.38 | 324.9 | 303.9 | 98.60 |
| 4800. | 22.51 | 325.4 | 304.4 | 100.8 |
| 4900. | 22.64 | 325.8 | 304.8 | 103.1 |
| 5000. | 22.78 | 326.3 | 305.2 | 105.4 |
| 5100. | 22.92 | 326.8 | 305.6 | 107.7 |
| 5200. | 23.07 | 327.2 | 306.1 | 110.0 |
| 5300. | 23.23 | 327.6 | 306.5 | 112.3 |
| 5400. | 23.39 | 328.1 | 306.9 | 114.6 |
| 5500. | 23.56 | 328.5 | 307.2 | 117.0 |
| 5600. | 23.73 | 328.9 | 307.6 | 119.3 |
| 5700. | 23.91 | 329.4 | 308.0 | 121.7 |
| 5800. | 24.09 | 329.8 | 308.4 | 124.1 |
| 5900. | 24.28 | 330.2 | 308.7 | 126.5 |
| 6000. | 24.47 | 330.6 | 309.1 | 129.0 |
References
Go To: Top, Gas Phase Heat Capacity (Shomate Equation), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Notes
Go To: Top, Gas Phase Heat Capacity (Shomate Equation), References
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