Integrated Rate Law Video Lessons

Concept:

Problem: From the following data for the first-order gas-phase isomerization of CH3 NC at 215 oC, calculate the first-order rate constant and half-life for the reaction:Time  (s) Pressure CH3NC (torr)050220003355000180800095.51200041.71500022.4

FREE Expert Solution

A first order reaction is a reaction whose rate depends linearly on the concentration of only one reactant.

For a hypothetical reaction: A → B

The rate law is written as:

We will be needing the integrated rate law for a first-order reaction. The integrated rate law is:

Since we have been given a pressure of CH3NC, we will use the pressure values in our integrated rate law. We will also see how the units of k are derived.

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Problem Details

From the following data for the first-order gas-phase isomerization of CH3 NC at 215 oC, calculate the first-order rate constant and half-life for the reaction:

 Time  (s) Pressure CH3NC (torr) 0 502 2000 335 5000 180 8000 95.5 12000 41.7 15000 22.4