kinetics vs. thermodynamics

[Alexandra Bartolome 2H]

What does it mean when kinetics rather than thermodynamics is controlling a reaction?

[TimVintsDis4L]

So Kinetics deals with how fast or slow a species react, but Thermodynamics deals with how stable they are in one state or another. That's essentially what the question is asking.

[Myka G 1l]

Short reaction times usually mean the reaction is kinetically controlled while longer reaction times usually suggest thermodynamic reaction control.

[705302428]

kinetics deals with reaction speed while thermodynamics deals with stability

[Chantel_2I]

Kinetics focuses on the process and speed of the reaction, while thermodynamics focuses on the beginning and end of the reaction, regardless of how the reaction got there.

[Ritu Gaikwad 2E]

Thermodynamics is focused on the transfer of heat or energy in a reaction, focusing primarily on the beginning and ends of the state of a reaction while kinetics is focused on the actual speed of the process taken to get to that reaction.

[Nuoya Jiang]

So if a product forms when the temperature is high, it is controlled by thermodynamics; if another product forms when the temperature is low, it is controlled by kinetics since it has a relatively low activation ennergy.

[Maya Gollamudi 1G]

Kinetics favors reactions with low activation energy, as the reaction will occur more quickly.

[Joshua Eidam 2A]

Saying a reaction is either kinetically or thermodynamically controlled means that the kinetic or thermodynamic factors of the reaction are ultimately determining if and how the reaction is going to take place. In this case, it can be helpful to look at what each term means. Thermodynamics looks at the interrelation of heat and work within chemical reactions while kinetics is focused on the speed at which a reaction takes place. So if a reaction takes place because of high temperatures, for example, you can infer that it is thermodynamically controlled while if a reaction takes place in cold temperatures very quickly, you could infer that since temperature is not a factor but the speed of the reaction is, that reaction is kinetically controlled.