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What is the activation energy for a reaction if its rate doubl

Question

What is the activation energy for a reaction if its rate doubles when the temperature is raised from $2 0^{0} C$ to $3 5^{0} C$ ? (R = 8.314 J $m o l^{- 1} K^{- 1}$ )

269 kJ

m o l^{- 1}

34.7 kJ

m o l^{- 1}

15.1 kJ

m o l^{- 1}

342 kJ

m o l^{- 1}

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What is the activation energy for a reaction if its rate doubles when the temperature is raised from

2 0^{0} C

3 5^{0} C

? (R = 8.314 J

m o l^{- 1} K^{- 1}

)

9 mins ago

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9 mins ago

Text solutionVerified

l o g \frac{k _{2}}{k _{1}}

\frac{E _{a}}{2.303 \times R} (\frac{1}{T _{1}} - \frac{1}{T _{2}})

Substituting the values

l o g 2

\frac{E _{a}}{2.303 \times 8.314} (\frac{1}{293} - \frac{1}{308})

E_{a} = 34.7 k J m o l^{- 1}

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Question Text	What is the activation energy for a reaction if its rate doubles when the temperature is raised from $2 0^{0} C$ to $3 5^{0} C$ ? (R = 8.314 J $m o l^{- 1} K^{- 1}$ )
Answer Type	Text solution:1
Upvotes	150