Rate Equations (A Level only) (AQA A-Level Chemistry): Flashcards

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The Arrhenius Equation
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Variables linked by Arrhenius equation

Rate constant, activation energy, temperature

Arrhenius equation

k=Ae−EaRTk = A e^{-\frac{E_a}{RT}}

What is AA in the Arrhenius equation?

Frequency of collisions with proper orientation

What EaE_a is

Activation energy

Definition of activation energy EaE_a

Minimum energy required for reaction to occur

Value of gas constant RR

8.31 J K⁻¹ mol⁻¹

Units of activation energy EaE_a

J mol⁻¹

Temperature unit in Arrhenius equation

Kelvin

Effect of temperature increase on kk

Increases

Effect of increased kk on reaction rate

Increases rate of reaction

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Explore AQA A-Level Chemistry Exam Questions by Topics

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