Selected ATcT [1, 2] enthalpy of formation based on version 1.122r of the Thermochemical Network [3] This version of ATcT results was generated from an expansion of version 1.122q [4, 5] to include a non-rigid rotor anharmonic oscillator (NRRAO) partition function for hydroxymethyl [6], as well as data on 42 additional species, some of which are related to soot formation mechanisms.
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Species Name |
Formula |
Image |
ΔfH°(0 K) |
ΔfH°(298.15 K) |
Uncertainty |
Units |
Relative Molecular Mass |
ATcT ID |
Hydrogen bromide | HBr (aq) | | | -120.59 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*800 |
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Top contributors to the provenance of ΔfH° of HBr (aq)The 9 contributors listed below account for 55.3% of the provenance of ΔfH° of HBr (aq).
Please note: The list is limited to 20 most important contributors or, if less, a number sufficient to account for 90% of the provenance. The Reference acts as a further link to the relevant references and notes for the measurement. The Measured Quantity is normaly given in the original units; in cases where we have reinterpreted the original measurement, the listed value may differ from that given by the authors. The quoted uncertainty is the a priori uncertainty used as input when constructing the initial Thermochemical Network, and corresponds either to the value proposed by the original authors or to our estimate; if an additional multiplier is given in parentheses immediately after the prior uncertainty, it corresponds to the factor by which the prior uncertainty needed to be multiplied during the ATcT analysis in order to make that particular measurement consistent with the prevailing knowledge contained in the Thermochemical Network.
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Contribution (%) | TN ID | Reaction | Measured Quantity | Reference | 19.8 | 1009.1 | [HBr]+ (g) → H (g) + Br+ (g)  | ΔrH°(0 K) = 31394.5 ± 20 (×1.044) cm-1 | Haugh 1971, Norling 1935 | 10.5 | 951.2 | Br2 (cr,l) → Br2 (g)  | ΔrH°(298.15 K) = 7.386 ± 0.027 kcal/mol | Hildenbrand 1958 | 7.5 | 983.1 | HBr (g) → HBr (aq, 2570 H2O)  | ΔrH°(298.15 K) = -20.286 ± 0.012 kcal/mol | Vanderzee 1963 | 3.5 | 999.1 | Cl2 (g) + 2 Br- (aq) → Br2 (cr,l) + 2 Cl- (aq)  | ΔrH°(298.15 K) = -91.29 ± 0.40 (×3.83) kJ/mol | Johnson 1963, as quoted by CODATA Key Vals | 3.5 | 999.2 | Cl2 (g) + 2 Br- (aq) → Br2 (cr,l) + 2 Cl- (aq)  | ΔrH°(298.15 K) = -91.29 ± 0.80 (×1.915) kJ/mol | Sunner 1964, as quoted by CODATA Key Vals | 3.2 | 979.1 | 1/2 H2 (g) + 1/2 Br2 (cr,l) → HBr (aq)  | ΔrG°(298.15 K) = -102.81 ± 0.80 kJ/mol | Jones 1934, as quoted by CODATA Key Vals | 3.1 | 1009.3 | [HBr]+ (g) → H (g) + Br+ (g)  | ΔrH°(0 K) = 31358 ± 15 (×3.513) cm-1 | Penno 1998, Norling 1935, est unc | 2.0 | 999.3 | Cl2 (g) + 2 Br- (aq) → Br2 (cr,l) + 2 Cl- (aq)  | ΔrH°(298.15 K) = -91.55 ± 2.00 kJ/mol | Thomsen 1882, as quoted by CODATA Key Vals | 1.9 | 1107.1 | Br2 (cr,l) + 3 I- (aq) → [I3]- (aq) + 2 Br- (aq)  | ΔrH°(298.15 K) = -29.355 ± 0.364 kcal/mol | Wu 1963 |
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Top 10 species with enthalpies of formation correlated to the ΔfH° of HBr (aq) |
Please note: The correlation coefficients are obtained by renormalizing the off-diagonal elements of the covariance matrix by the corresponding variances. The correlation coefficient is a number from -1 to 1, with 1 representing perfectly correlated species, -1 representing perfectly anti-correlated species, and 0 representing perfectly uncorrelated species.
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Correlation Coefficent (%) | Species Name | Formula | Image | ΔfH°(0 K) | ΔfH°(298.15 K) | Uncertainty | Units | Relative Molecular Mass | ATcT ID | 100.0 | Bromide | Br- (aq) | | | -120.59 | ± 0.15 | kJ/mol | 79.90455 ± 0.00100 | 24959-67-9*800 | 99.8 | Hydrogen bromide | HBr (aq, 2000 H2O) | | | -120.30 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*841 | 99.8 | Hydrogen bromide | HBr (aq, 2570 H2O) | | | -120.34 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*952 | 99.8 | Hydrogen bromide | HBr (aq, 3000 H2O) | | | -120.35 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*842 | 99.8 | Hydrogen bromide | HBr (aq, 1000 H2O) | | | -120.20 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*839 | 99.7 | Hydrogen bromide | HBr (aq, 5000 H2O) | | | -120.40 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*844 | 99.7 | Hydrogen bromide | HBr (aq, 600 H2O) | | | -120.11 | ± 0.15 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*834 | 93.9 | Hydrogen bromide | HBr (g) | | -27.60 | -35.45 | ± 0.14 | kJ/mol | 80.9119 ± 0.0010 | 10035-10-6*0 | 93.8 | Bromoniumyl | [HBr]+ (g) | | 1098.07 | 1090.22 | ± 0.14 | kJ/mol | 80.9114 ± 0.0010 | 12258-64-9*0 | 91.0 | Ammonium bromide | (NH4)Br (cr) | | -253.35 | -269.93 | ± 0.16 | kJ/mol | 97.9425 ± 0.0010 | 12124-97-9*510 |
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Most Influential reactions involving HBr (aq)Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.
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Influence Coefficient | TN ID | Reaction | Measured Quantity | Reference | 1.000 | 978.1 | HBr (aq) → H+ (aq) + Br- (aq)  | ΔrH°(298.15 K) = 0.000 ± 0.000 kcal/mol | triv | 0.373 | 989.1 | HBr (aq, 600 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.115 ± 0.004 kcal/mol | Parker 1965, NBS TN270, NBS Tables 1989 | 0.339 | 993.2 | HBr (aq, 5000 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.044 ± 0.004 kcal/mol | Parker 1965, NBS TN270, NBS Tables 1989 | 0.271 | 990.1 | HBr (aq, 1000 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.092 ± 0.004 kcal/mol | Parker 1965, NBS TN270, NBS Tables 1989 | 0.218 | 992.2 | HBr (aq, 3000 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.056 ± 0.004 kcal/mol | Parker 1965, NBS TN270, NBS Tables 1989 | 0.213 | 984.2 | HBr (aq, 2570 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.060 ± 0.004 kcal/mol | Parker 1965, NBS Tables 1989, est unc | 0.213 | 984.1 | HBr (aq, 2570 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.064 ± 0.004 kcal/mol | Vanderzee 1963, Sturtevant 1940, Sturtevant 1940b, Sturtevant 1942, est unc | 0.207 | 991.1 | HBr (aq, 2000 H2O) → HBr (aq)  | ΔrH°(298.15 K) = -0.068 ± 0.004 kcal/mol | Parker 1965, NBS TN270, NBS Tables 1989 | 0.032 | 979.1 | 1/2 H2 (g) + 1/2 Br2 (cr,l) → HBr (aq)  | ΔrG°(298.15 K) = -102.81 ± 0.80 kJ/mol | Jones 1934, as quoted by CODATA Key Vals | 0.015 | 981.1 | HBr (g) → HBr (aq)  | ΔrH°(298.15 K) = -85.23 ± 0.40 kJ/mol | Roth 1937, note CODATA HBr, as quoted by CODATA Key Vals | 0.006 | 981.2 | HBr (g) → HBr (aq)  | ΔrH°(298.15 K) = -85.06 ± 0.60 kJ/mol | Thomsen 1882, note CODATA HBr, as quoted by CODATA Key Vals | 0.003 | 980.1 | 2 HBr (aq) + Cl2 (g) → 2 HCl (aq) + Br2 (aq)  | ΔrH°(298.15 K) = -21.2 ± 1.2 (×1.269) kcal/mol | Wartenberg 1930, Wartenberg 1931, Parker 1965 | 0.002 | 981.3 | HBr (g) → HBr (aq)  | ΔrG°(298.15 K) = -51.38 ± 1.00 kJ/mol | Haase 1963, as quoted by CODATA Key Vals | 0.000 | 577.2 | FOF (g) + 4 HBr (aq) → 2 HF (aq) + H2O (cr,l) + 2 Br2 (cr,l)  | ΔrH°(298.15 K) = -124.8 ± 5.2 (×1.164) kcal/mol | Wartenberg 1930, Wartenberg 1931, Parker 1965 |
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References
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1
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|
B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner,
Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited.
J. Phys. Chem. A 108, 9979-9997 (2004)
[DOI: 10.1021/jp047912y]
|
2
|
|
B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner,
Active Thermochemical Tables: Thermochemistry for the 21st Century.
J. Phys. Conf. Ser. 16, 561-570 (2005)
[DOI: 10.1088/1742-6596/16/1/078]
|
3
|
|
B. Ruscic and D. H. Bross, Active Thermochemical Tables (ATcT) values based on ver. 1.122r of the Thermochemical Network, Argonne National Laboratory, Lemont, Illinois 2021 [DOI: 10.17038/CSE/1822363]; available at ATcT.anl.gov
|
4
|
|
D. Feller, D. H. Bross, and B. Ruscic,
Enthalpy of Formation of C2H2O4 (Oxalic Acid) from High-Level Calculations and the Active Thermochemical Tables Approach.
J. Phys. Chem. A 123, 3481-3496 (2019)
[DOI: 10.1021/acs.jpca.8b12329]
|
5
|
|
B. K. Welch, R. Dawes, D. H. Bross, and B. Ruscic,
An Automated Thermochemistry Protocol Based on Explicitly Correlated Coupled-Cluster Theory: The Methyl and Ethyl Peroxy Families.
J. Phys. Chem. A 123, 5673-5682 (2019)
[DOI: 10.1021/acs.jpca.8b12329]
|
6
|
|
D. H. Bross, H.-G. Yu, L. B. Harding, and B. Ruscic,
Active Thermochemical Tables: The Partition Function of Hydroxymethyl (CH2OH) Revisited.
J. Phys. Chem. A 123, 4212-4231 (2019)
[DOI: 10.1021/acs.jpca.9b02295]
|
7
|
|
B. Ruscic,
Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables.
Int. J. Quantum Chem. 114, 1097-1101 (2014)
[DOI: 10.1002/qua.24605]
|
|