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

question 74

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 half-life of the reaction is 8.42 × 10^-2 at 575 K.The rate constant when the initial [ $\mathrm { CH } _ { 3 }$ NC] is 0.030 mol L^-1 is ________ $s ^ { - 1 }$ .

• A)11.9
• B)0.178
• C)396
• D)0.122
• E)8.23

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Definitions:

Acid-test Ratio

A stringent indicator of a company’s short-term liquidity, calculated by dividing liquid assets by current liabilities, excluding inventory.

Debt-to-equity Ratio

The ratio that indicates the mix between shareholders' equity and debt in the capital structure used to finance assets.

Receivable Turnover

A financial metric that measures how efficiently a company collects on its accounts receivable, calculated as sales divided by accounts receivable.

Inventory Turnover

A ratio showing how often a company's inventory is sold and replaced over a specific period, indicating the efficiency of inventory management.