Elemental sulfur occurs in several forms, with rhombic sulfur the most stable under normal conditions and monoclinic sulfur somewhat less Calculate the change in enthalpy for the rhombic to monoclinic transition as shown by the following reaction: S(s, rhom) → S(s, mono) S(s, rhom)  + O2(g) → SO2(g)               ΔH  =  −296.83 kJ S(s, mono) + O2(g) → SO2(g)             ΔH = −297.16 kJ

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
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Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.101QE: In the 1880s, Frederick Trouton noted that the enthalpy of vaporization of 1 mol pure liquid is...
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  1. Elemental sulfur occurs in several forms, with rhombic sulfur the most stable under normal conditions and monoclinic sulfur somewhat less

Calculate the change in enthalpy for the rhombic to monoclinic transition as shown by the following reaction: S(s, rhom) S(s, mono)

S(s, rhom)  + O2(g) SO2(g)               ΔH  =  −296.83 kJ

S(s, mono) + O2(g) SO2(g)             ΔH = −297.16 kJ

  1. Given the following reactions:

N2(g) + 2 O2(g) 2 NO2(g)                         ΔH = 66.36 kJ

Determine the enthalpy of the reaction of nitrogen and oxygen to produce nitric oxide: N2(g) + O2(g) 2NO(g)

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