Dinitrogen pentoxide


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) 298. - 800.800. - 6000.
A 5.70065135.72701
B 80.781410.037000
C -84.47729-0.009145
D 32.227700.000735
E -0.010145-1.934290
F -1.941511-13.64770
G 69.05361117.3140
H 2.7000512.700051
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1964 Data last reviewed in December, 1964
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.23.0182.8282.83-0.00
300.23.0982.9782.830.04
400.26.5090.1083.782.53
500.28.9696.3085.685.31
600.30.69101.787.918.30
700.31.89106.690.2411.43
800.32.75110.992.5514.66
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
800.32.73110.992.5514.66
900.33.37114.894.8117.97
1000.33.82118.396.9821.33
1100.34.16121.699.0724.73
1200.34.42124.5101.128.16
1300.34.62127.3103.031.61
1400.34.78129.9104.835.08
1500.34.90132.3106.638.56
1600.35.01134.5108.242.06
1700.35.10136.7109.945.57
1800.35.17138.7111.449.08
1900.35.23140.6112.952.60
2000.35.29142.4114.356.13
2100.35.33144.1115.759.66
2200.35.37145.7117.063.19
2300.35.41147.3118.366.73
2400.35.44148.8119.570.27
2500.35.46150.3120.773.82
2600.35.49151.7121.977.37
2700.35.51153.0123.080.92
2800.35.53154.3124.184.47
2900.35.55155.5125.288.02
3000.35.56156.7126.291.58
3100.35.57157.9127.295.13
3200.35.59159.0128.298.69
3300.35.60160.1129.2102.3
3400.35.61161.2130.1105.8
3500.35.62162.2131.0109.4
3600.35.63163.2131.9112.9
3700.35.63164.2132.7116.5
3800.35.64165.2133.6120.1
3900.35.65166.1134.4123.6
4000.35.65167.0135.2127.2
4100.35.66167.9136.0130.8
4200.35.67168.7136.8134.3
4300.35.67169.6137.5137.9
4400.35.68170.4138.2141.5
4500.35.68171.2139.0145.0
4600.35.68172.0139.7148.6
4700.35.69172.7140.4152.2
4800.35.69173.5141.1155.7
4900.35.69174.2141.7159.3
5000.35.70175.0142.4162.9
5100.35.70175.7143.0166.4
5200.35.70176.4143.7170.0
5300.35.71177.0144.3173.6
5400.35.71177.7144.9177.2
5500.35.71178.4145.5180.7
5600.35.71179.0146.1184.3
5700.35.72179.6146.7187.9
5800.35.72180.3147.2191.4
5900.35.72180.9147.8195.0
6000.35.72181.5148.4198.6

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