niobium pentachloride


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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 800. - 6000.
A 31.52342
B 0.236850
C -0.065164
D 0.005621
E -0.283513
F -178.4620
G 133.0612
H -168.0999
ReferenceChase, 1998
Comment Data last reviewed in December, 1974
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
800.31.23126.4107.315.28
900.31.34130.1109.718.41
1000.31.42133.4111.921.54
1100.31.48136.4114.024.69
1200.31.53139.1115.927.84
1300.31.57141.7117.830.99
1400.31.60144.0119.634.15
1500.31.63146.2121.337.31
1600.31.65148.2122.940.48
1700.31.67150.2124.543.64
1800.31.68152.0126.046.81
1900.31.70153.7127.449.98
2000.31.71155.3128.753.15
2100.31.72156.9130.056.32
2200.31.73158.3131.359.49
2300.31.74159.7132.562.67
2400.31.75161.1133.765.84
2500.31.75162.4134.869.02
2600.31.76163.6135.972.19
2700.31.76164.8136.975.37
2800.31.76166.0137.978.54
2900.31.77167.1138.981.72
3000.31.77168.2139.984.90
3100.31.77169.2140.888.07
3200.31.77170.2141.791.25
3300.31.77171.2142.694.43
3400.31.77172.2143.497.60
3500.31.77173.1144.3100.8
3600.31.77174.0145.1104.0
3700.31.77174.8145.9107.1
3800.31.77175.7146.7110.3
3900.31.77176.5147.4113.5
4000.31.77177.3148.2116.7
4100.31.77178.1148.9119.8
4200.31.77178.9149.6123.0
4300.31.77179.6150.3126.2
4400.31.77180.3150.9129.4
4500.31.77181.1151.6132.6
4600.31.77181.8152.3135.7
4700.31.77182.4152.9138.9
4800.31.77183.1153.5142.1
4900.31.77183.8154.1145.3
5000.31.77184.4154.7148.4
5100.31.77185.0155.3151.6
5200.31.77185.7155.9154.8
5300.31.78186.3156.5158.0
5400.31.78186.9157.0161.1
5500.31.78187.4157.6164.3
5600.31.78188.0158.1167.5
5700.31.79188.6158.6170.7
5800.31.79189.1159.1173.9
5900.31.80189.7159.7177.0
6000.31.80190.2160.2180.2

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