4. In its standard state, elemental sulphur (rhombic) combusts to produce gaseous SO3. This reaction was performed with excess sulphur in a closed container with thin, flexible walls that was submerged in 3.00 L of water at 20.0 °C with a constant external pressure of 1.00 bar. After the reaction, the temperature of the water increased by 2.1 °C, and from the change in water height, the work was calculated as 80.0 J. Calculate: i) the mass of oxygen, in g, that reacted, ii) AU, in kJ, for the reaction, and iii) the standard enthalpy of formation for SO3(g), in kJ/mol. (Cp,water= 4.184 J/(g °C) )
4. In its standard state, elemental sulphur (rhombic) combusts to produce gaseous SO3. This reaction was performed with excess sulphur in a closed container with thin, flexible walls that was submerged in 3.00 L of water at 20.0 °C with a constant external pressure of 1.00 bar. After the reaction, the temperature of the water increased by 2.1 °C, and from the change in water height, the work was calculated as 80.0 J. Calculate: i) the mass of oxygen, in g, that reacted, ii) AU, in kJ, for the reaction, and iii) the standard enthalpy of formation for SO3(g), in kJ/mol. (Cp,water= 4.184 J/(g °C) )
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:14. In its standard state, elemental sulphur (rhombic) combusts to produce gaseous SO3. This reaction
was performed with excess sulphur in a closed container with thin, flexible walls that was submerged
in 3.00 L of water at 20.0 °C with a constant external pressure of 1.00 bar. After the reaction, the
temperature of the water increased by 2.1 °C, and from the change in water height, the work was
calculated as 80.0 J. Calculate: i) the mass of oxygen, in g, that reacted, ii) AU, in kJ, for the reaction,
and iii) the standard enthalpy of formation for SO3(g), in kJ/mol. (Cp.water= 4.184 J/(g °C))
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