The reaction of cyanamide, {NH}_{2} {CN}( {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}_{2} {CN}( {s})+\frac{3}{2} {O}_{2}(g) \rightarrow {N}_{2}(g)+ {O}_{2}(g)+ {H}_{2} {O}(l) is ............. {kJ} (Rounded off to the nearest integer). [Assume ideal gases and R=8.314 {J} {mol}^{-1} {K}^{-1} ] [25 Feb 2021 Shift 1]

Chemical Thermodynamics Part 1

Section: Chemistry

Question : 12 of 100

Marks: +1, -0

The reaction of cyanamide, NH2CN(s) with oxygen was run in a bomb calorimeter and ∆U was found to be −742.24kJmol−1. The magnitude of ∆H298 for the reaction NH2CN(s)+‌

O2(g)⟶N2(g)+O2(g)+H2O(l) is ............. kJ (Rounded off to the nearest integer).
[Assume ideal gases and
R=8.314Jmol−1K−1 ]

[25 Feb 2021 Shift 1]

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