Is Potassium More Reactive Than Lithium? A Look at the Electrochemical Series

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In summary, the electrochemical series ranks lithium above potassium, but potassium is more reactive than lithium. This is because potassium can displace lithium from its compound, even though lithium gives up electrons more easily according to the electrochemical series. However, this displacement is not affected by standard conditions, as the standard potentials only apply to reactions involving equal activity of all substances. There is no reference to support the claim that potassium can displace lithium from LiCl, as this reaction does not follow standard conditions.
  • #1
jsmith613
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The electrochemical series:
http://www.chemguide.co.uk/physical/redoxeqia/ecs.html#top
ranks Li above K
but potassium is more reactive than lithium
given that Lithium gives up electrons more easily according to the electrochemical series, how can this be?
 
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  • #2
jsmith613 said:
potassium is more reactive than lithium

Define "more reactive".
 
  • #3
Borek said:
Define "more reactive".

will displace it from its compound
so K will displace Li from LiCl
 
  • #4
jsmith613 said:
so K will displace Li from LiCl

Will it? Even if, standard potentials are for standard conditions (activity of everything equal 1). Reacting two solids has nothing to do with standard conditions.
 
  • #5
Can you provide a reference for your claim. I tried Googling it and kind find any reference to Potassium displacing Lithium from LiCl.
 

What is the reactivity series?

The reactivity series is a list of metals and their reactions with other substances. It is used to predict the relative reactivity of metals and determine which metals will displace others in chemical reactions.

What are the most reactive metals?

The most reactive metals are located at the top of the reactivity series. These include potassium, sodium, and calcium.

What are the least reactive metals?

The least reactive metals are located at the bottom of the reactivity series. These include gold, platinum, and silver.

Why is the reactivity series important?

The reactivity series is important because it helps scientists understand and predict the chemical behavior of metals. It also helps in determining which metals are suitable for various applications, such as in construction or electronics.

How is the reactivity series determined?

The reactivity series is determined by observing the reactions of metals with water and acids, as well as their ability to displace other metals in a single displacement reaction. The more reactive a metal is, the higher it is placed in the series.

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