Azomethane, CH3NNCH3, decomposes according to the following equation: CH3-N=N-CH3(g) - (g) + (g). The initial concentration of azomethane was 1.50 × 10^-2 M. After 10 min, the concentration decreased

Question

Azomethane, CH3NNCH3, decomposes according to the following equation: CH3-N=N-CH3(g) -> $C_2H_6$(g) + $N_2$(g). The initial concentration of azomethane was 1.50 × 10^-2 M. After 10 min, the concentration decreased to 1.29 × 10^-2 M. The average rate of reaction during this time interval is

Prashant Kotian · Accepted Answer

Correct answer: A. Average rate of reaction = - Change in concentration / Change in time = - (1.29 × 10^-2 - 1.50 × 10^-2) M / (10 x 60 s) = 2.1 × 10^-3 M / 600 s = 3.5 × 10^-6 M s^-1.

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