Does the Belousov-Zhabotinsky Reaction Lead to a Steady State or Oscillations?

In summary, the conversation discusses oscillating chemical reactions, specifically the Belousov-Zhabotinsky reaction. The reaction does not oscillate forever, as the oscillations are a side effect of the complicated mechanism. Once the reactants are depleted, the reaction stops and reaches a macroscopic stationary state. The concept of a limit cycle is also mentioned, which arises when considering an infinite number of reactants.
  • #1
Llewlyn
68
0
I'm interested in oscillating chemical reaction, as Belousov-Zhabotinsky one.
Does it oscillate "forever" or it relax to a macroscopical stationary state?

Ll.
 
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  • #2
Not forever. Oscillations are a side effect of the compilcated mechanism of otherwise simple reaction - as long as there are reactants present reaction proceeds, at some point there is no more reactants - and it stops.
 
  • #3
So from the differential equations point of view: the attractor set of the system is not really a limit cycle but a fixed point that corrispond at the equilibrium state.

Limite cycle arises when i consider an infinity of reactants, does it sound right?

Ll.
 
  • #4
You are probably right, I am not used to this nomenclature.
 

1. What is an oscillating chemical reaction?

An oscillating chemical reaction is a type of chemical reaction that exhibits periodic changes in its properties, such as color, concentration, or temperature. These changes occur in a regular and repeating pattern, unlike most chemical reactions that progress towards an equilibrium state.

2. What causes an oscillating chemical reaction?

An oscillating chemical reaction is typically caused by the presence of multiple reactants and products in the reaction mixture, as well as certain catalysts or inhibitors. These components interact with each other in a complex way, resulting in the periodic changes observed in the reaction.

3. Can oscillating chemical reactions occur in nature?

Yes, oscillating chemical reactions can occur in nature. For example, the Belousov-Zhabotinsky reaction, which is a well-known oscillating chemical reaction, has been observed in certain plants and even in our own bodies. However, most oscillating reactions are artificially created in laboratory settings.

4. What are some practical applications of oscillating chemical reactions?

Oscillating chemical reactions have a variety of practical applications, including in the production of certain chemicals, in the study of biochemical processes, and in the development of new materials. They can also be used as models for understanding dynamic systems in nature, such as biological rhythms and climate cycles.

5. Are oscillating chemical reactions reversible?

Yes, oscillating chemical reactions are reversible, meaning they can progress in both forward and reverse directions. This is due to the fact that the reaction products can act as reactants in the opposite direction, resulting in the periodic changes observed in the reaction.

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