The reaction of cyanamide, NH_2CN(s) with oxygen was run in a bomb calorimeter and U was found to be –742.24...

Question

The reaction of cyanamide, NH_2CN(s) with oxygen was run in a bomb calorimeter and U was found to be –742.24 kJ mol^ -1 . The magnitude of H_ 298 for the reaction NH_2CN(s)+ 3 2 O_2(g) N_2(g)+O_2(g)+H_2O(l) is _______ kJ. (Rounded off to the nearest integer) [Assume ideal gases and R = 8.314 J mol^ -1 K^ -1 ]

Accepted Answer

741

JEE Main 2021 Chemistry question

Solution