Which of the following reactions are endothermic and spontaneous? (i) \frac{1}{2} {\H}_2( {\g})+\frac{1}{2} {\Cl}_2( {\g}) \to {\HCl}( {\g}) (ii) {\C} (Graphite) +2 {\S}( {\l}) \to {\CS}_2(1) (iii) \frac{1}{2} {\N}_2( {\g})+\frac{3}{2} {\H}_2( {\g}) \to {\NH}_3( {\g}) (iv) {\H}_2( {\g})+\frac{1}{2} {\O}_2( {\g}) \to {\H}_2 {\O}( {\l}) (v) \frac{1}{2} {\N}_2( {\g})+ {\O}_2( {\g}) \to {\NO}_2( {\g})

Correct Answer is : (ii), (v) only

AP EAMCET 23 May 2023 Shift 1 Paper

Question : 131 of 160

Marks: +1, -0

Which of the following reactions are endothermic and spontaneous?
(i) ‌

H2(g)+‌

Cl2(g)→HCl(g)
(ii) C (Graphite) +2S(l)→CS2(1)
(iii) ‌

N2(g)+‌

H2(g)→NH3(g)
(iv) H2(g)+‌

O2(g)→H2O(l)
(v) ‌

N2(g)+O2(g)→NO2(g)

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