Problem: 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 . 2 N2O5 ⟶ 4 NO2 + O2What is the rate of the reaction when [N2O5] = 0.40 M?

FREE Expert Solution

A first order reaction is a reaction whose rate depends linearly on the concentration of only one reactant. Since the given reaction for the decomposition of dinitrogen pentoxide (N2O5) is a first-order reaction, the rate equation can be written as:


<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>r</mi><mi>a</mi><mi>t</mi><mi>e</mi><mo>&#xA0;</mo><mo>=</mo><mo>&#xA0;</mo><mi>k</mi><msup><mfenced open="[" close="]"><mrow><msub><mi>N</mi><mn>2</mn></msub><msub><mi>O</mi><mn>5</mn></msub></mrow></mfenced><mn>1</mn></msup></math>


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Problem Details

The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N2O5, dissolved in chloroform, CHCl3, is 6.2 × 10−4 min1

2 N2O5 ⟶ 4 NO2 + O2

What is the rate of the reaction when [N2O5] = 0.40 M?

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