Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶ 2NO(g). ΔHo for this reaction is 180.6 kJ/mol. Determine the minimum temperature at which this reaction becomes spontaneous. Assume that ΔHo and ΔSo do not vary with temperature. Substance So (J/mol*K) N2(g) 191.5 O2(g) 205.0 NO(g) 210.6 NO2(g) 240.5 O(g) 161.0 a) 7585 oC b) 7312 oC c) This reaction will not be spontaneous at any temperature. d) 7039 oC e) This reaction is spontaneous at all temperatures.
Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶ 2NO(g). ΔHo for this reaction is 180.6 kJ/mol. Determine the minimum temperature at which this reaction becomes spontaneous. Assume that ΔHo and ΔSo do not vary with temperature. Substance So (J/mol*K) N2(g) 191.5 O2(g) 205.0 NO(g) 210.6 NO2(g) 240.5 O(g) 161.0 a) 7585 oC b) 7312 oC c) This reaction will not be spontaneous at any temperature. d) 7039 oC e) This reaction is spontaneous at all temperatures.
Chemistry
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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
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Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶ 2NO(g). ΔHo for this reaction is 180.6 kJ/mol. Determine the minimum temperature at which this reaction becomes spontaneous. Assume that ΔHo and ΔSo do not vary with temperature.
|
Substance |
So (J/mol*K) |
|
N2(g) |
191.5 |
|
O2(g) |
205.0 |
|
NO(g) |
210.6 |
|
NO2(g) |
240.5 |
|
O(g) |
161.0 |
a) 7585 oC
b) 7312 oC
c) This reaction will not be spontaneous at any temperature.
d) 7039 oC
e) This reaction is spontaneous at all temperatures.
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