General Chemistry University Science Books 4th Edition presented by Sapling Lear

Question

General Chemistry University Science Books 4th Edition presented by Sapling Learning Donald McQuarrie. Peter A. Rock Ethan Gallogly The decomposition of N205 can be described by the equation 2N205 (soln) 4NO2 (soln) oz(g) Given these data for the reaction at 45°C in carbon tetrachloride solution calculate the average rate of reaction for each successive time interval Interval: 0 s to 205 s 205 s to 446 s Number Number Reaction rate: t (s) [N205 (M) 0 2.39 205 2.10 446 1.81 765 1.48 446 s to 765 s Number Map

Explanation / Answer

for the given reaction,

rate = -1/2d[N2O5]/dt

                             interval : 0 to 205 s

Reaction rate = -1/2(2.10-2.39)/(205) = 7.07 x 10^-4 M/s

                             interval : 205 to 446 s

Reaction rate = -1/2(1.48-1.81)/(765-446) = 5.17 x 10^-4 M/s

                             interval : 0 to 205 s

Reaction rate = -1/2(2.10-2.39)/(205) = 0.116 M/s

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