At Elevated Temperatures, Methylisonitrile (CH₃NC) Isomerizes to Acetonitrile (CH₃CN)

At elevated temperatures, methylisonitrile (CH₃NC) isomerizes to acetonitrile (CH₃CN) :
CH₃NC (g) → CH₃CN (g)
At the start of the experiment, there are 0.200 mol of reactant (CH₃NC) and 0 mol of product (CH₃CN) in the reaction vessel. After 25 min of reaction, 0.108 mol of reactant (CH₃NC) remain. The average rate of decomposition of methyl isonitrile, CH₃NC, in this 25 min period is mol/min.

A) 0.54
B) 3.7 × 10^{- 3}
C) 4.3 × 10^{- 3}
D) 0.092
E) 2.3

Correct Answer:

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