Hypochlorous acid (HOCl) can decompose in the gas phase according to the following balanced equation: 2 HOCl(g) ➔ 2 HCl(g) + O2(g) ΔH = -31.0 kJ (T = 298 K, P = 1 atm) Using the enthalpy of this reaction and data in the following table, calculate the standard enthalpy of formation for HOCl(g). Standard Enthalpy of Formation at 289 K Substance Formula ΔH∘f(kJ/mol)ΔHf∘(kJ/mol) Hydrogen bromide HBr(g) -36.26 Hydrogen chloride HCl(g) -92.30 Hydrogen fluoride HF(g) -268.60 Hydrogen iodide HI(g) 25.9 Methane CH4(g) -74.80 Water vapor H2O(g) -241.8
Hypochlorous acid (HOCl) can decompose in the gas phase according to the following balanced equation: 2 HOCl(g) ➔ 2 HCl(g) + O2(g) ΔH = -31.0 kJ (T = 298 K, P = 1 atm) Using the enthalpy of this reaction and data in the following table, calculate the standard enthalpy of formation for HOCl(g). Standard Enthalpy of Formation at 289 K Substance Formula ΔH∘f(kJ/mol)ΔHf∘(kJ/mol) Hydrogen bromide HBr(g) -36.26 Hydrogen chloride HCl(g) -92.30 Hydrogen fluoride HF(g) -268.60 Hydrogen iodide HI(g) 25.9 Methane CH4(g) -74.80 Water vapor H2O(g) -241.8
General Chemistry - Standalone book (MindTap Course List)
11th Edition
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.88QP: The first step in the preparation of lead from its ore (galena, PbS) consists of roasting the ore....
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Hypochlorous acid (HOCl) can decompose in the gas phase according to the following balanced equation:
2 HOCl(g) ➔ 2 HCl(g) + O2(g) ΔH = -31.0 kJ (T = 298 K, P = 1 atm)
Using the enthalpy of this reaction and data in the following table, calculate the standard enthalpy of formation for HOCl(g).
2 HOCl(g) ➔ 2 HCl(g) + O2(g) ΔH = -31.0 kJ (T = 298 K, P = 1 atm)
Using the enthalpy of this reaction and data in the following table, calculate the standard enthalpy of formation for HOCl(g).
Standard Enthalpy of Formation at 289 K
| Substance | Formula | ΔH∘f(kJ/mol)ΔHf∘(kJ/mol) |
| Hydrogen bromide | HBr(g) | -36.26 |
| Hydrogen chloride | HCl(g) | -92.30 |
| Hydrogen fluoride | HF(g) | -268.60 |
| Hydrogen iodide | HI(g) | 25.9 |
| Methane | CH4(g) | -74.80 |
| Water vapor | H2O(g) | -241.8 |
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