Slope of Arrhenius Plot  [ENDORSED]

Arrhenius Equation:

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Nathan Sanchez 1F
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Slope of Arrhenius Plot

Postby Nathan Sanchez 1F » Sun Mar 19, 2017 2:24 pm

Why is the slope equal to -activation energy/R? How does that make sense with respect to the plot?
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Chem_Mod
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Re: Slope of Arrhenius Plot

Postby Chem_Mod » Sun Mar 19, 2017 6:01 pm

The Arrhenius equation: ln k = -Ea/RT + ln A

Plot: ln k vs 1/T

Therefore, slope = -Ea/R
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dayannaramirez_1J
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Re: Slope of Arrhenius Plot

Postby dayannaramirez_1J » Sun Mar 19, 2017 6:53 pm

Will the slope always be negative?
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divya_devineni_2E
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Re: Slope of Arrhenius Plot

Postby divya_devineni_2E » Sun Mar 19, 2017 10:20 pm

Yes, the slope will always be negative
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Chem_Mod
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Re: Slope of Arrhenius Plot  [ENDORSED]

Postby Chem_Mod » Mon Mar 20, 2017 12:44 pm

Yes, the slope will always be negative because activation energy is always a positive value.

I mentioned this in class a couple of times: activation energies and rate constants are always positive values
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