A) \[{{N}_{2}}(g)+{{O}_{2}}(g)+180.8\,kJ\xrightarrow{{}}2NO\,(g)\]
B) \[C\,(graphite)+2S\,(s)\xrightarrow{{}}C{{S}_{2}}(l)-91.9\,kJ\]
C) \[{{N}_{2}}\,(g)+3{{H}_{2}}(g)-92\,kJ\xrightarrow{{}}2N{{H}_{3}}(g)\]
D) \[C\,(g)+{{H}_{2}}O(g)\xrightarrow{{}}CO\,(g)+{{H}_{2}}(g)-131.1\,kJ\]
Correct Answer: C
Solution :
The reactions in which products has lesser energy than reactants, the energy is released in the reaction and such reactions are known as exothermic reactions, e.g. \[{{N}_{2}}+3{{H}_{2}}\xrightarrow{{}}2N{{H}_{3}}+92\,kJ\] In this equation energy is released. So, it is an example of exothermic reaction.
You need to login to perform this action.
You will be redirected in
3 sec
