For the reaction 2 H 2 g + 2 N O g → N 2 g + 2 H 2 O g the observed rate expression is, rate = k f NO…

For the reaction 2H2g+2NOg→N2g+2H2Og the observed rate expression is, rate =kfNO2H2 . The rate expression for the reverse reaction is:
  1. kbN2H2O2
  2. kbN2H2O2/NO
  3. kbN2H2O
  4. kbN2H2O2/H2

Solution

K eq = k f k b = N 2 H 2 O 2 H 2 2 [NO] 2

At equilibrium rf=rb
 
k f H 2 [NO] 2 = k b N 2 H 2 O 2 H 2

Hence, rate expression for reverse reaction.

= k b N 2 H 2 O 2 H 2

Asked in: JEE Main 2020 (07 Jan Shift 2)

Practice more Chemical Kinetics questions on Aicharya