Boric acid


Gas Phase Heat Capacity (Shomate Equation)

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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. - 1200.1200. - 6000.
A 22.91803123.6309
B 182.031211.27103
C -125.7518-2.150124
D 34.687490.142479
E -0.145463-20.84674
F -1006.649-1075.104
G 273.1524383.4117
H -992.2774-992.2774
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1964 Data last reviewed in December, 1964
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.65.28295.2295.2-0.01
300.65.53295.6295.20.12
400.76.92316.1297.97.26
500.86.25334.3303.415.43
600.93.95350.7310.024.46
700.100.3365.7316.934.18
800.105.6379.5323.944.48
900.110.0392.2330.755.27
1000.113.7403.9337.566.46
1100.117.0414.9344.078.00
1200.120.1425.3350.489.86
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1200.119.8425.2350.489.85
1300.122.6435.0356.5102.0
1400.125.0444.1362.4114.4
1500.126.9452.8368.2127.0
1600.128.6461.1373.7139.7
1700.130.1468.9379.1152.7
1800.131.3476.4384.3165.7
1900.132.5483.5389.3178.9
2000.133.5490.3394.2192.2
2100.134.4496.9398.9205.6
2200.135.2503.1403.5219.1
2300.136.0509.2408.0232.7
2400.136.6515.0412.3246.3
2500.137.3520.6416.6260.0
2600.137.8526.0420.7273.8
2700.138.3531.2424.7287.6
2800.138.8536.2428.6301.4
2900.139.2541.1432.4315.3
3000.139.6545.8436.1329.3
3100.140.0550.4439.7343.2
3200.140.3554.8443.2357.3
3300.140.6559.2446.6371.3
3400.140.9563.4450.0385.4
3500.141.1567.5453.3399.5
3600.141.4571.4456.5413.6
3700.141.6575.3459.7427.8
3800.141.8579.1462.8441.9
3900.142.0582.8465.8456.1
4000.142.1586.4468.8470.3
4100.142.3589.9471.7484.5
4200.142.4593.3474.6498.8
4300.142.5596.7477.4513.0
4400.142.7599.9480.1527.3
4500.142.8603.2482.8541.6
4600.142.9606.3485.5555.8
4700.143.0609.4488.1570.1
4800.143.0612.4490.6584.4
4900.143.1615.3493.1598.7
5000.143.2618.2495.6613.1
5100.143.3621.1498.0627.4
5200.143.4623.8500.4641.7
5300.143.4626.6502.8656.1
5400.143.5629.3505.1670.4
5500.143.6631.9507.4684.8
5600.143.7634.5509.6699.1
5700.143.8637.0511.8713.5
5800.143.9639.5514.0727.9
5900.143.9642.0516.2742.3
6000.144.0644.4518.3756.7

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