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Corrigendum to “Standard molar enthalpy of formation of Bi2WO6(s) and Bi2W2O9(s) compounds” [J. Chem. Thermodyn. 63 (2013) 74–77]
J. Chem. Thermodynamics 89 (2015) 312–313
Contents lists available at ScienceDirect
J. Chem. Thermodynamics journal homepage: www.elsevier.com/locate/jct
Corrigendum
Corrigendum to ‘‘Standard molar enthalpy of formation of Bi2WO6(s) and Bi2W2O9(s) compounds’’ [J. Chem. Thermodyn. 63 (2013) 74–77] S. Phapale, D. Das, R. Mishra ⇑ Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
It has come to our attention that in our paper published in The Journal of Chemical Thermodynamics (J. Chem. Thermodyn. 63 (2013) 74–77); enthalpy-change values used in tables 2 and 3 to calculate the formation enthalpies for Bi2WO6(s) and Bi2W2O9(s) at T = 298 K are listed incorrectly. We regret these unintentional mistakes and include the correct and final version of tables 2 and 3. The values of formation enthalpies for Bi2WO6(s) and Bi2W2O9(s) derived from tables 2 and 3 are incorporated in the text where ever required. 1. Page-1, Para-1 (Abstract), line-10: the values of Df H298 of Bi2WO6(s) and Bi2W2O9(s) at T = 298 K were found to be (1440.53 ± 8.38) kJ mol 1 and (2406.59 ± 7.61) kJ mol 1, respectively. 2. Page-3, Table-2: reaction scheme for the standard molar enthalpy of formation of Bi2WO6(s) (M(sln) = dilute solution of species M in 3 g liquid Na2O + MoO3 3:4 M solvent maintained at T = 983 K, Df H298 = DH1 + DH2 + DH3 + DH4 + DH5). Reaction
DHi
Bi2WO6(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) + WO3(sln, T = 983 K) Bi2O3(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) WO3(s, T = 298 K) + (sln, T = 983 K) = WO3(sln, T = 983 K) 2Bi(s, T = 298 K) + 3/2O2(g, T = 298 K) = Bi2O3(s, T = 298 K) W(s, T = 298 K) + 3/2O2(g, T = 298 K) = WO3(s, T = 298 K) 2Bi(s, 298 K) + W(s, T = 298 K) + 3O2(g, T = 298 K) = Bi2WO6(s, T = 298 K)
DH1 DH2 DH3 DH4 DH5 Df H298
DHi/kJ mol
1
265.86 ± 5.77 137.90 ± 4.81 104.30 ± 2.13 574.00 ± 0.80 842.87 ± 2.93 1440.53 ± 8.38
References This work This work This work Reference [13] Reference [12] This work
3. Page-4, Table-3: reaction scheme for the standard molar enthalpy of formation of Bi2W2O9(s). (M(sln) = dilute solution of species M in 3 g liquid Na2O + MoO3 3:4 M solvent maintained at T = 983 K, Df H298 = 2DH3 + DH4 + 2DH5). Reaction
DHi
Bi2W2O9(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) + 2WO3(sln, T = 983 K) Bi2O3(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) WO3(s, T = 298 K) + (sln, T = 983 K) = WO3(sln, T = 983 K) 2Bi(s, T = 298 K) + 3/2O2(g, T = 298 K) = Bi2O3(s, T = 298 K) W(s, T = 298 K) + 3/2O2(g, T = 298 K) = WO3(s, T = 298 K) 2Bi(s, T = 298 K) + 2W(s, T = 298 K) 9/2O2(g, T = 298 K) = Bi2W2O9(s, T = 298 K)
DH1 DH2 DH3 DH4 DH5 Df H298
DOI of original article: http://dx.doi.org/10.1016/j.jct.2013.04.004
⇑ Corresponding author. Tel.: +91 22 25592460; fax: +91 22 25505151. E-mail addresses: [email protected] (S. Phapale), [email protected] (D. Das), [email protected] (R. Mishra). http://dx.doi.org/10.1016/j.jct.2015.05.018 0021-9614/Ó 2015 Elsevier Ltd. All rights reserved.
DHi/kJ mol
1
493.35 ± 4.06 137.90 ± 4.81 104.30 ± 2.13 574.00 ± 0.80 842.87 ± 2.93 2406.59 ± 7.61
DH 1 + DH 2 +
References This work This work This work Reference [13] Reference [12] This work
S. Phapale et al. / J. Chem. Thermodynamics 89 (2015) 312–313
313
4. Page-4, Para-3, (Section 3.1), line-7: references [12,13]: reference [13] refers to molar enthalpies of formation of Bi2O3(s). 5. Page-4, Para-3, (Section 3.1), line-9: the values are found to be (1440.53 ± 8.38) kJ mol 1 and (2406.59 ± 7.61) kJ mol 1, respectively. 6. Page-4, Para-4, (Summary), line-5,6: the values of Df H298 of Bi2WO6(s) and Bi2W2O9(s) were found to be (1440.53 ± 8.38) kJ mol 1 and (2406.59 ± 7.61) kJ mol 1, respectively. 7. Page-4, Para-5, (Reference), line-21: O. Kubaschewski, C.B. Alcock, Metallurgical Thermochemistry, fifth edition, Pergamon, 1979.
Contents lists available at ScienceDirect
J. Chem. Thermodynamics journal homepage: www.elsevier.com/locate/jct
Corrigendum
Corrigendum to ‘‘Standard molar enthalpy of formation of Bi2WO6(s) and Bi2W2O9(s) compounds’’ [J. Chem. Thermodyn. 63 (2013) 74–77] S. Phapale, D. Das, R. Mishra ⇑ Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
It has come to our attention that in our paper published in The Journal of Chemical Thermodynamics (J. Chem. Thermodyn. 63 (2013) 74–77); enthalpy-change values used in tables 2 and 3 to calculate the formation enthalpies for Bi2WO6(s) and Bi2W2O9(s) at T = 298 K are listed incorrectly. We regret these unintentional mistakes and include the correct and final version of tables 2 and 3. The values of formation enthalpies for Bi2WO6(s) and Bi2W2O9(s) derived from tables 2 and 3 are incorporated in the text where ever required. 1. Page-1, Para-1 (Abstract), line-10: the values of Df H298 of Bi2WO6(s) and Bi2W2O9(s) at T = 298 K were found to be (1440.53 ± 8.38) kJ mol 1 and (2406.59 ± 7.61) kJ mol 1, respectively. 2. Page-3, Table-2: reaction scheme for the standard molar enthalpy of formation of Bi2WO6(s) (M(sln) = dilute solution of species M in 3 g liquid Na2O + MoO3 3:4 M solvent maintained at T = 983 K, Df H298 = DH1 + DH2 + DH3 + DH4 + DH5). Reaction
DHi
Bi2WO6(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) + WO3(sln, T = 983 K) Bi2O3(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) WO3(s, T = 298 K) + (sln, T = 983 K) = WO3(sln, T = 983 K) 2Bi(s, T = 298 K) + 3/2O2(g, T = 298 K) = Bi2O3(s, T = 298 K) W(s, T = 298 K) + 3/2O2(g, T = 298 K) = WO3(s, T = 298 K) 2Bi(s, 298 K) + W(s, T = 298 K) + 3O2(g, T = 298 K) = Bi2WO6(s, T = 298 K)
DH1 DH2 DH3 DH4 DH5 Df H298
DHi/kJ mol
1
265.86 ± 5.77 137.90 ± 4.81 104.30 ± 2.13 574.00 ± 0.80 842.87 ± 2.93 1440.53 ± 8.38
References This work This work This work Reference [13] Reference [12] This work
3. Page-4, Table-3: reaction scheme for the standard molar enthalpy of formation of Bi2W2O9(s). (M(sln) = dilute solution of species M in 3 g liquid Na2O + MoO3 3:4 M solvent maintained at T = 983 K, Df H298 = 2DH3 + DH4 + 2DH5). Reaction
DHi
Bi2W2O9(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) + 2WO3(sln, T = 983 K) Bi2O3(s, T = 298 K) + (sln, T = 983 K) = Bi2O3(sln, T = 983 K) WO3(s, T = 298 K) + (sln, T = 983 K) = WO3(sln, T = 983 K) 2Bi(s, T = 298 K) + 3/2O2(g, T = 298 K) = Bi2O3(s, T = 298 K) W(s, T = 298 K) + 3/2O2(g, T = 298 K) = WO3(s, T = 298 K) 2Bi(s, T = 298 K) + 2W(s, T = 298 K) 9/2O2(g, T = 298 K) = Bi2W2O9(s, T = 298 K)
DH1 DH2 DH3 DH4 DH5 Df H298
DOI of original article: http://dx.doi.org/10.1016/j.jct.2013.04.004
⇑ Corresponding author. Tel.: +91 22 25592460; fax: +91 22 25505151. E-mail addresses: [email protected] (S. Phapale), [email protected] (D. Das), [email protected] (R. Mishra). http://dx.doi.org/10.1016/j.jct.2015.05.018 0021-9614/Ó 2015 Elsevier Ltd. All rights reserved.
DHi/kJ mol
1
493.35 ± 4.06 137.90 ± 4.81 104.30 ± 2.13 574.00 ± 0.80 842.87 ± 2.93 2406.59 ± 7.61
DH 1 + DH 2 +
References This work This work This work Reference [13] Reference [12] This work
S. Phapale et al. / J. Chem. Thermodynamics 89 (2015) 312–313
313
4. Page-4, Para-3, (Section 3.1), line-7: references [12,13]: reference [13] refers to molar enthalpies of formation of Bi2O3(s). 5. Page-4, Para-3, (Section 3.1), line-9: the values are found to be (1440.53 ± 8.38) kJ mol 1 and (2406.59 ± 7.61) kJ mol 1, respectively. 6. Page-4, Para-4, (Summary), line-5,6: the values of Df H298 of Bi2WO6(s) and Bi2W2O9(s) were found to be (1440.53 ± 8.38) kJ mol 1 and (2406.59 ± 7.61) kJ mol 1, respectively. 7. Page-4, Para-5, (Reference), line-21: O. Kubaschewski, C.B. Alcock, Metallurgical Thermochemistry, fifth edition, Pergamon, 1979.