12.29 | The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N2O5

Описание к видео 12.29 | The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N2O5

"The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N2O5, dissolved in chloroform, CHCl3, is 6.2 × 10−4 min−1.
2N2O5 → 4NO2 + O2
What is the rate of the reaction when [N2O5] = 0.40 M?"
To calculate the rate of the reaction for the decomposition of dinitrogen pentoxide (N2O5):

1. *Rate Law for First-Order Reaction:*
The rate law for a first-order reaction is:
Rate = k[N2O5]
Where:
k = 6.2 × 10⁻⁴ min⁻¹ (rate constant)
[N2O5] = 0.40 M (concentration of N2O5)

2. *Substitute the Given Values into the Rate Law:*
Rate = (6.2 × 10⁻⁴ min⁻¹) * (0.40 M)

3. *Calculate:*
Rate = 2.48 × 10⁻⁴ M/min

4. *Conclusion:*
The rate of the reaction is 2.48 × 10⁻⁴ M/min.

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