A) Heat of combustion of carbon is 110 kJ
B) Reaction is exothermic
C) Reaction needs no initiation
D) All of these are correct
Correct Answer: B
Solution :
\[2C+{{O}_{2}}\xrightarrow{{}}2CO;\,\,\Delta H=-220kJ\] This reaction does not represent complete combustion of carbon, hence heat of combustion of carbon will not be equal to 110 kJ. The negative sign of \[\Delta H\] indicates that this reaction is exothermic. Also, despite being spontaneous reaction, it requires initiation.
You need to login to perform this action.
You will be redirected in
3 sec
