A Certain First-Order Reaction a  B Is 25

question 55

Multiple Choice

A certain first-order reaction A  B is 25% complete in 42 min at 25°C. What is its rate constant?

• A)6.8  10^-3 min^-1
• B)8.3  10^-3 min^-1
• C)3.3  10^-2 min^-1
• D)-3.3  10^-2 min^-1
• E)11 min^-1

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