The isomerization of methyl isonitrile (CH_{3}NC) to acetonitrile (CH_{3}CN) was studied in the gas phase at 215 ^{o}C, and the following data were obtained:

Time (s) | [CH_{3}NC] (M) |

0 | 0.0165 |

2000 | 0.0110 |

5000 | 0.00591 |

8000 | 0.00314 |

12000 | 0.00137 |

15000 | 0.00074 |

Solve graphically the instantaneous rate in M/s at t = 5000 s.

We’re being asked to **solve graphically the instantaneous rate** in **M/s**** at t = 5000 s** based on the data for the isomerization of methyl isonitrile (CH_{3}NC) to acetonitrile (CH_{3}CN).

An **instantaneous reaction rate** is the rate at a particular moment in the reaction and is usually determined graphically and can be calculated as:

$\overline{){\mathbf{r}}{\mathbf{a}}{\mathbf{t}}{\mathbf{e}}{\mathbf{=}}\frac{\mathbf{\u2206}\left[\right]}{\mathbf{\u2206}\mathbf{t}}}$

Δ[ ] = change in concentration

Δt = change in time

To do so, we will **make a graph** of the **concentration of CH _{3}CN in M (y-axis) vs. time in s (x-axis)**

Instantaneous Rate of Change

Instantaneous Rate of Change

Instantaneous Rate of Change

Instantaneous Rate of Change