The rate law for the rearrangement of CH₃NC to CH₃CN at 800 K is Rate = (1300 s⁻¹)[CH₃NC]. What is the half-life for this reaction?

Question

Quizplus · Accepted Answer

The half-life (t1/2) for a first-order reaction can be calculated using the equation: t1/2 = ln(2) / k where k is the rate constant. From the rate law given, we can see that the reaction is first-order with respect to [CH₃NC]. Therefore, we can write: k = (1300 s⁻¹) Plugging this value of k into the equation for t1/2: t1/2 = ln(2) / (1300 s⁻¹) Calculating this value gives us: t1/2 = 5.3 × 10 ⁻⁴s Therefore, the best answer choice is B.

The Rate Law for the Rearrangement of CH3NC to CH3CN

The Rate Law for the Rearrangement of CH₃NC to CH₃CN