Thermal decomposition of N_2O_5 occurs as per the equation below 2N_2O_5\to4NO_2 + O_2 The correct statement is

Correct Answer is : rate of disappearance of N2O5 is twice the O2 production rate

O_2 production rate is four times the NO_2 production rate

O_2 production rate is the same as the rate of disappearance of NO_2O_5

rate of disappearance of N_2O_5 is one-fourth of NO_2 production rate

KVPY 2019 SB SX Exam Previous Papers

Question : 51 of 120

Marks: +1, -0

Thermal decomposition of

N_2O_5

occurs as per the equation below

2N_2O_5→4NO_2 + O_2

The correct statement is

Solution:

2N_2O_5\ –––––▸ 4NO_2 + O_2

Rate =

-1/2d/{dt}[N_2O_5]=1/4d/{dt}[NO_2]=d/{dt}[O_2]

-d/{dt}[N_2O_5]=2[d/{dt}[O_2]]

So rate of disappearance of

N_2O_5

is twice the

O_2

production rate.

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