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Which of the following reactions will NOT be spontaneous at any temperature?          (A) 2SO3(g)   -->  2SO2(g)  +  O2(g);         DHo =  +198 kJ         (B) 2NO(g)  +  O2(g)  -->  2NO2(g);          DHo =  -112 kJ         (C) C2H4(g) +  H2(g) -->   C2H6(g);             DHo =  -137 kJ         (D) 2N2(g)  +  O2(g)  -->   2N2O(g);           DHo =  +164 kJ

Which of the following reactions will NOT be spontaneous at any temperature?          (A) 2SO3(g)   -->  2SO2(g)  +  O2(g);         DHo =  +198 kJ         (B) 2NO(g)  +  O2(g)  -->  2NO2(g);          DHo =  -112 kJ         (C) C2H4(g) +  H2(g) -->   C2H6(g);             DHo =  -137 kJ         (D) 2N2(g)  +  O2(g)  -->   2N2O(g);           DHo =  +164 kJ

Chemistry
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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Which of the following reactions will NOT be spontaneous at any temperature? 

        (A) 2SO3(g)   -->  2SO2(g)  +  O2(g);         DHo =  +198 kJ

        (B) 2NO(g)  +  O2(g)  -->  2NO2(g);          DHo =  -112 kJ

        (C) C2H4(g) +  H2(g) -->   C2H6(g);             DHo =  -137 kJ

        (D) 2N2(g)  +  O2(g)  -->   2N2O(g);           DHo =  +164 kJ

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