Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Advanced2024ChemistryChemical KineticsActual

Consider the following reaction, 2 H ₂( ~g )+2 NO ( g ) N ₂( ~g )+2 H ₂ O ( g ) which follows the mechanism given below: 2 NO ( g ) k₁ k_ -1 N ₂ O ₂( ~g ) (fast equlibrium) N ₂ O ₂( ~g )+ H ₂( ~g ) k₂ ~N ₂ O ( g )+ H ₂ O ( g ) (slow reaction) N ₂ O ( g )+ H ₂( ~g ) k₃ ~N ₂( ~g )+ H ₂ O ( g ) (fast reaction) The order of the reaction is_____

Correct answer

0

Step-by-step solution

Rate law = k ₂ [ ~N ₂ O ₂ ] [ H ₂ ] [ slowest step of reaction is RDS ] k ₁ k _ -1 = [ N ₂ O ₂ ] [ NO ]^2 [ N ₂ O ₂ ]= k ₁ k _ -1 [ NO ]^2 Rate = k ₂ k ₁ k _ -1 [ NO ]^2 [ H ₂ ] Order of reaction is (3)

Practice Chemical Kinetics on Quantrex Academy →

More from Chemical Kinetics

For a reversible reaction R P , at constant temperature, both the forward and the backward reactions are first order elementary reactions with rate constants k_f and k_b , respecti 2026For a first-order reaction R P at a given temperature, k is the rate constant. For this reaction, at the given temperature, the concentrations of R and P at a time t are [ R ] and 2026Given below are two statements: R=8.314 J K ⁻¹ mol ⁻¹ and 1 cal =4.2 J Statement I: When E_a=12.6 kcal/mol, the room temperature rate constant is doubled by a 10 ,^ C increase in t 2026Decomposition of a hydrocarbon follows the equation k = (5.5 10¹¹ , s ⁻¹) ,e^ -28000 , K T . The activation energy of reaction is __________ kJ mol ⁻¹ . (Nearest Integer) Given : R 2026For a reaction A P at T K , the half life (t_ 1/2 ) is plotted as a function of initial concentration [A]₀ of A as given below. The value of x in the given figure is _______ s (Nea 2026First order gas phase reaction A B + C p_i = initial pressure of gas A, p_t = total pressure of the reaction mixture at time t Expression of rate constant ( k ) is 2026If the half life of a first order reaction is 6.93 minutes then the time required for completion of 99 % of the reaction will be _____ minutes. (Given : 2 = 0.3010 ) 2026Consider the given graph showing variation of reactant concentration with time. Three different reactions were started with identical initial concentration of reactants. Which of t 2026 Full Chemical Kinetics list All JEE Advanced PYQs