The Reaction CH₃NC(g)  CH₃CN(g) Is First-Order with Respect

question 75

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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