Answered: AH; SO,(g) = -296.8 kJ/mol AH; SO, (g)…

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 49E: When 2.50 g of methane burns in oxygen, 125 kJ of heat is produced. What is the enthalpy of...

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Question

Sulfur be dioxide, SO₂(g) can react with oxygen to produce sulfur trioxide, SO₃(g) by the reaction

2 SO₂(g) + O₂(g)-->2SO₃(g)

The standard enthalpies of formation for SO₂(g) and SO₃(g) are (delta H, attached in the photo)

calculate the amount of energy in the form of heat that is produced when a volume of 3.19 L of SO₂(g) is converted to 3.19L of SO₃(g) according to this process at a constant pressure and temperature of 1.00atm and 25°C. Assume the ideal gas behavior.

AH; SO, (g) = -296.8 kJ/mol
AH¡ [SO,(g)] =
= -395.7 kJ/mol

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