NEETChemistryThermodynamics (C)
The reaction of cyanamide, NH 2 CN (s), with dioxygen was carried out in a bomb calorimeter, and ∆U was found to be –742.7 kJ mol –1 at 298 K. What is the enthalpy change for the reaction at 298 K? NH 2 CN (g) + 3/2 O 2 (g) → N 2 (g) + CO 2 (g) + H 2 O(l)
Options
- A–743.9 kJ
- B–786.4 kJ
- C–645.8 kJ
- D–697.2 kJ
Correct answer
A. –743.9 kJ
Step-by-step solution
Correct Option is : (A) –743.9 kJ