What causes oscillating chemical reactions?
The oscillations in an oscillating chemical reaction are driven by the decrease in free energy of the mixture. This decrease is what drives all chemical reactions, but not all chemical reactions exhibit oscillations.
Who discovered oscillating reactions?
Boris Belousov
His Nonlinear Chemical Dynamics Group is based at Brandeis University in the US. These images show a sequence of patterns observed in the Belousov-Zhabotinsky reaction in a petri dish. Boris Belousov, the Russian scientist who discovered an unusual oscillatory reaction in the 1950s.
What does oscillation mean in chemistry?
Oscillation is defined as the process of repeating variations of any quantity or measure about its equilibrium value in time. Oscillation can also be defined as a periodic variation of a matter between two values or about its central value.
Do oscillating reactions stop?
It should be noted that the reaction will always come to a stop unless you use a continuously stirred flow reactor in which products are removed and reactants added as the reaction proceeds.
What is the definition of oscillation in physics?
An oscillation can be a periodic motion that repeats itself in a regular cycle, such as a sine wave—a wave with perpetual motion as in the side-to-side swing of a pendulum, or the up-and-down motion of a spring with a weight. An oscillating movement occurs around an equilibrium point or mean value.
What are the three types of oscillations?
There are 3 main types of Oscillation – Free, damped, and forced oscillation.
What happens in a Belousov-zhabotinsky reaction?
The Belousov-Zhabotinsky (BZ) reaction is a family of oscillating chemical reactions. During these reactions, transition-metal ions catalyze oxidation of various, usually organic, reductants by bromic acid in acidic water solution. Most BZ reactions are homogeneous.