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JEE Main20207 Jan 2020Evening ShiftChemistryChemical KineticsActual

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 2 H 2 . The rate expression for the reverse reaction is:

Options

  1. Ak b N 2 H 2 O 2
  2. Bk b N 2 H 2 O 2 / NO
  3. Ck b N 2 H 2 O
  4. Dk b N 2 H 2 O 2 / H 2

Correct answer

D. k b N 2 H 2 O 2 / H 2

Step-by-step solution

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

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