The Rate Constant and the Arrhenius Equation

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11 Terms

1
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What does the Arrhenius equation link

The rate constant, activation enthalpy and temperature

2
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What is k in the Arrhenius equation

Rate constant

3
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What is Ea in the Arrhenius equation

Activation enthalpy (Jmol-1)

4
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What is T in the Arrhenius equation

Temperature (K)

5
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What is R in the Arrhenius equation

Gas constant

6
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What is A in the Arrhenius equation

The pre-exponential factor (includes factors such as frequency of collisions, orientation of collisions)

7
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What is e in the Arrhenius equation

Constant (on calculator)

8
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How does Ea affect k

As Ea increases, k decreases

9
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How does T affect k

As T increases, k increases

10
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What graph is plotted from the rearranged Arrhenius equation

lnk against 1/T

11
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How to find Ea and A from the graph plotted from the rearranged Arrhenius equation

-Ea/R is the gradient and lnA is the y intercept

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