For the reaction, 2N2g+O2g2N2O, at 298K H is 164 KJ mol-1. The E of the reaction is

1. 166.5 kJ mol-1

2. 161.5 kJ mol-1

3. 164.0 kJ mol-1

4. 169 kJ mol-1

Concept Videos :-

#4 | Heat
#26 | Entropy
#29 | Entropy Change Calculation: Case II, III & IV

Concept Questions :-

Enthalpy and It's Type

H=E+n RT.n=-1164×103=E-1×08.314×298                  =E-2.478×103E=164×103+2.478×103        =166.5 KJ mol-1

Difficulty Level:

  • 55%
  • 24%
  • 18%
  • 4%