Question

The decomposition of N2O5N2O5 can be described by the equation

2N2O5(soln)⟶4NO2(soln)+O2(g)

Consider the data in the table for the reaction at 45 ∘C45 ∘C in carbon tetrachloride solution.

? (?)t (s)	[N2O5] (?)[N2O5] (M)
0	2.540
205	2.233
476	1.883
765	1.570

Given the data, calculate the average rate of reaction for each successive time interval.

What is the average rate of reaction for the time interval from 0 s0 s to 205 s?

average rate of reaction:

M/sM/s

What is the average rate of reaction for the time interval from 205  s to 476 s

average rate of reaction:

M/sM/s

What is the average rate of reaction for the time interval from 476 s to 765s?

average rate of reaction:

M/sM/s

Answer 1

At And briven Reaction 2 N, 05 (soln) – 4NO2 (soln) + 0,4) Rate of Reaction is given by Rate = -1 AN205] 2 At where - NN205] = Rate of dissappearance of N, 05 I Rate is calculated by dividing it by its stoichiometric coefficient w Average rate from Os to 205 s. Concentration of N, 05 decreases from 2-540 M to 2.233 M. 1 [N; 05] = 2.233 - 2.540 A [NO]= -0.307 M and At= 2055

. Rate = 4 ANOS] = I x -0.307 205 7.49 x 10-4 M/S (2) Average Rates from 205 sto 4765 [N, Og] decreases from 2333 M to 1.883 M. 2 A [N205] = 10883-2-233 = -0.350 At = 4765 - 2055 271 S

7 Rate = - 1 x AN205 At - - x — 0.350 22) - Б«Чь х) - MIS (2) Aug 100e. Rahе son y26 s 165 S [N, Of ] decreases from 1.883 M to 1.5 10 н э л [N, 05 1 = 1.5 10 – 1.38 2 = – 0-313 14 де = 1, 5 s – Ч76s 2 2 89 s - Rate = 1 A[N₂05] ДЕ 2 -) 2 x 0.312 289 = 5. Их ј0 - MS