The Isomerization of Methylisonitrile to Acetonitrile $\mathrm { CH } _ { 3 }$

question 12

Multiple Choice

The isomerization of methylisonitrile to acetonitrile
$\mathrm { CH } _ { 3 }$ NC(g) ? $\mathrm { CH } _ { 3 }$ CN(g)
is first order in $\mathrm { CH } _ { 3 }$ NC.The rate constant for the reaction is 5.26 × 10^-3 $s ^ { - 1 }$ at 531 K.The $\text { half-life }$ of the reaction when the initial [ $\mathrm { CH } _ { 3 }$ NC] is 0.030 mol L^-1 is ________ s.

• A)4.38 × 10²
• B)2.85
• C)6.34 × 10³
• D)7.59 × 10^-3
• E)1.32 × 10²

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