Solution: The reaction of cyanamide, NH2CN(s), with oxygen was run in a bomb calorimeter, and ΔE was found to be -742.7 kJ/mol of NH2CN(s) at 298 K. Calculate ΔH for the reaction at this temperature. Reaction: NH2CN (s) + 3/2O2 (g) → N2 (g) + CO2 (g) + H2O (l) a. -727.8 kJ/mol b. -737.7 kJ c. -741.5 kJ d. -742.7 kJ e. none of the above

Problem

The reaction of cyanamide, NH2CN(s), with oxygen was run in a bomb calorimeter, and ΔE was found to be -742.7 kJ/mol of NH2CN(s) at 298 K. Calculate ΔH for the reaction at this temperature. 

Reaction: NH2CN (s) + 3/2O2 (g) → N2 (g) + CO2 (g) + H2O (l) 

a. -727.8 kJ/mol 

b. -737.7 kJ 

c. -741.5 kJ 

d. -742.7 kJ 

e. none of the above

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