Photochemical smog is formed through a sequence of reactions, the fırst of which is N2(g) + O2(g) –→ 2NO(g). A H° for this reaction is 180.6 kJ/mol. Determine the minimum temperature at which this reaction becomes spontaneous. Assume that A Hº and A Sº do not vary with temperature.
Photochemical smog is formed through a sequence of reactions, the fırst of which is N2(g) + O2(g) –→ 2NO(g). A H° for this reaction is 180.6 kJ/mol. Determine the minimum temperature at which this reaction becomes spontaneous. Assume that A Hº and A Sº do not vary with temperature.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Photochemical smog is formed through a sequence of reactions, the
4.
fırst of which is N2(g) + O2(g)→
2NO(g). A H° for this reaction is
180.6 kJ/mol. Determine the minimum temperature at which this
reaction becomes spontaneous. Assume that A H° and A Sº do not
vary with temperature.
Substance
S° (J/mol*K)
N2(g)
191.5
O2{g)
205.0
NO(g)
210.6
NO2(g)
240.5
O(g)
161.0
This reaction will not be spontaneous at any temperature.
7039 oC
7585 oC
This reaction is spontaneous at all temperatures.
7312 oC
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