The rate for the reaction NO2 + CO ----> NO +CO2 depends only on the concentrati

Question

The rate for the reaction
NO2 + CO ----> NO +CO2
depends only on the concentration of nitrogen dioxide below225 C, the following data were collected
Time (s) [NO2](mol/L) 0    0.5 1.2 x 103   0.444 3.00 x 103   0.381 4.5 x 103   0.34 9 x 103    0.25 1.8 x 104   0.174
Determine the rate law, integrated rate law, and the value ofthe rate constant. Calculate [NO2] at 2.70 x 104 s after thestart of the reaction. Show work please

NO2 + CO ----> NO +CO2
depends only on the concentration of nitrogen dioxide below225 C, the following data were collected
Time (s) [NO2](mol/L) 0    0.5 1.2 x 103   0.444 3.00 x 103   0.381 4.5 x 103   0.34 9 x 103    0.25 1.8 x 104   0.174
Determine the rate law, integrated rate law, and the value ofthe rate constant. Calculate [NO2] at 2.70 x 104 s after thestart of the reaction. Show work please

Explanation / Answer

We Know that ;    The given Reaction is :       NO2 + CO ----> NO+CO2         By plotting thegraph for the given values ;       We have to plot the graph ln[NO2] vs time and other graph for 1/ [NO2] vs time        From the graph we caninterpret that        The plot   1 / [NO2] vs time gives straight line which indicates the reaction is ofsecond order.           Rate = - [NO2] / t   = K [NO2]2          Integrated rate law for the above Reaction is :            1/ [A]   = Kt + 1 / [A]0            The Rate constant for the above Reaction is :               K = Slope = (5.747- 2 ) x L/mole / (18000 - 0) sec                     = 2.081 x 10-4 L / mole-s

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