(i) The reaction of cyanamide, NH CN(s)
with dioxygen was carried out in a bomb
calorimeter and AU was found to be
-742.7 kJ mol-1 at 298 K.
Calculate the enthalpy change of the
reaction at 298 k. NH2CN +3/2O2 ------→ N2 +CO2 +H2O
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