The Reaction CH₃NC(g) → CH₃CN(g) Is First-Order with Respect to Methyl

question 3

Multiple Choice

The reaction CH₃NC(g) → CH₃CN(g) is first-order with respect to methyl isocyanide, CH₃NC. If it takes 10.3 minutes for exactly one quarter of the initial amount of methyl isocyanide to react, what is the rate constant in units of min⁻¹?

• A)−0.135 min ⁻¹
• B)0.0279 min ⁻¹
• C)0.089 min ⁻¹
• D)0.135 min ⁻¹
• E)35.8 min ⁻¹

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