A reaction has a rate constant of $0\mathrm{.}000251s^{-1}$ at $33C$ and $0\mathrm{.}288s^{-1}$ at $76C.$

Part A

Determine the activation barrier for the reaction.

Express the activation energy in kilojoule per mole to three significant figures.

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Correct

Part B

What is the value of the rate constant at $16C?$

Express the rate constant in inverse seconds to three significant figures.

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Do part B please.