The OH· Radical Disproportionates According to the Elementary Chemical Reaction

question 73

Multiple Choice

The OH· radical disproportionates according to the elementary chemical reaction This reaction is second-order in OH·.The rate constant for the reaction is 2.0 × 10^-12 cm³/molecules at room temperature.If the initial OH· concentration is 1.4 × 10¹³ molecules/cm³,what is the first half-life for the reaction?

• A)2.8 × 10¹ s
• B)3.6 × 10^-2 s
• C)1.8 × 10^-2 s
• D)3.5 × 10¹¹ s
• E)7.1 × 10^-14 s

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