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

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