The decomposition of N2O5 occurs as- 2N2O5 - 4NO2 - O2- and follows first order KInetic - hence-

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Standard XII

Chemistry

Molecularity of Reaction

The decomposi...

Question

The decomposition of $N_{2} O_{5}$ occurs as, $2 N_{2} O_{5} \to 4 N O_{2} + O_{2},$ and follows first order KInetic ; hence:

the reaction is bimolecular

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the reaction is unimolcular

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t_{1 / 2}

α

a^{o}

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none of these

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Solution

The correct option is B the reaction is unimolcular
Here it is given that the reaction follows first order kinetic. So the rate of reaction depends upon only reactant.
Thus, the reaction is unimolecular reaction.

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Similar questions

Q. The decomposition of

N_{2} O_{5}

occurs as ,

2 N_{2} O_{5} \to 4 N O_{2} + O_{2},

and follows first order kinetics hence

Q. The thermal decomposition of

N_{2} O_{5}

occurs in the following steps:
Step I

N_{2} O_{5} s l o w - - \to N O_{2} + N O_{3}

Step II

N_{2} O_{5} + N O_{2} f a s t - - \to 3 N O_{2} + O_{2}

Overall reaction

¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ 2 N_{2} O_{5} \to 4 N O_{2} + O_{2}

Suggest the rate expression.

Q. The decomposition of

N_{2} O_{5}

C C l_{4}

solution at 320 K takes place as

2 N_{2} O_{5} \to 4 N O_{2} + O_{2}

; On the basis of given data order and the rate constant of the reaction is :

Time in minutes	10	15	20	25	$\infty$
The volume of $O_{2}$ evolved (in mL)	6.30	8.95	11.40	13.50	34.75

Q. For the reaction

2 N_{2} O_{5} \to 4 N O_{2} + O_{2}

, if the initial concentration of

N_{2} O_{5}

7.2 m o l L^{- 1}

and after

20

minutes,

[N O_{2}]

becomes

2.4 m o l L^{- 1}

, then what will be rate of decomposition of

N_{2} O_{5}

m o l L^{- 1} m i n^{- 1}

Q. The decomposition of

N_{2} O_{5}

takes place according to I order as

2 N_{2} O_{5} \to 4 N O_{2} + O_{2}

Calculate:
(a) The rate constant, if instantaneous rate is

1.4 \times 10^{- 6} m o l l i t r e^{- 1} {sec}^{- 1}

when concentration of

N_{2} O_{5}

0.04 M

.
(b) The rate of reaction when concentration of

N_{2} O_{5}

1.20 M

.
(c) The concentration of

N_{2} O_{5}

when the rate of reaction will be

2.45 \times 10^{- 5} m o l l i t r e^{- 1} {sec}^{- 1}

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The decomposition of N2O5 occurs as, 2N2O5→4NO2+O2, and follows first order KInetic ; hence:

The correct option is B the reaction is unimolcularHere it is given that the reaction follows first order kinetic. So the rate of reaction depends upon only reactant.Thus, the reaction is unimolecular reaction.

The decomposition of $N_{2} O_{5}$ occurs as, $2 N_{2} O_{5} \to 4 N O_{2} + O_{2},$ and follows first order KInetic ; hence:

The correct option is B the reaction is unimolcular
Here it is given that the reaction follows first order kinetic. So the rate of reaction depends upon only reactant.
Thus, the reaction is unimolecular reaction.