The Rate Constant for the First-Order Decomposition of a Particular

question 166

Multiple Choice

The rate constant for the first-order decomposition of a particular hydrocarbon is 1.85 *10^-6 s^-1 at 485 K.If the activation energy is 84.0 kJ/mol, what is the value of the frequency factor at this temperature?

• A)4.85 * 10^-4 s^-1
• B)1.11*10⁹ s^-1
• C)2.21 * 10¹ s^-1
• D)2.06 * 10³ s^-1
• E)1.81 * 10 ^-6 s^-1

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