Can a mixture of reactants be thermodynamically unstable but kinetically stable?

A mixture of reactants may be thermodynamically unstable but kinetically stable. Colloid is stable, while suspension is unstable.

Is there any correlation between thermodynamic stability and kinetic stability?

“Nanoemulsions are kinetically stable” means liquids in the mixture will become separated very slowly. However, thermodynamic stability means the free energy change from the reactant state to the product state are positive (ΔG > 0), which means the reaction will not happen if there is no external energy input.

What makes something kinetically stable?

Kinetic stability basically occurs when the reactants react really slowly. The slower the reaction occurs, the greater the kinetic stability. If you say, “This reaction is kinetically stable,” then that implies that the reaction occurs very slowly.

What is the meaning of positive catalyst?

Positive catalysts are those catalysts which increase the rate of the reaction This means that the activation energy of the reaction is lowered, and the speed of the reaction also increases. An example of positive catalysis is decomposition of potassium chlorate.

What is kinetically stable?

What makes a compound thermodynamically stable?

Thermodynamic stability occurs when a system is in its lowest energy state, or in chemical equilibrium with its environment. This may be a dynamic equilibrium in which individual atoms or molecules change form, but their overall number in a particular form is conserved.

Is ATP kinetically unstable?

The activation energy of the ATP hydrolysis reaction is pretty high. That means that ATP hydrolysis is thermodynamically favorable, but kinetically unfavorable (i.e. the reaction is slow). Enzymes get around this problem by lowering the activation energy of ATP hydrolysis. Why is ATP stable?

What is thermodynamically unstable?

A system is called thermodynamically unstable when there exists a state where the system will have lower energy than it currently has. A dispersion can be thermodynamically unstable, but can still be kinetically stable.

How do positive catalyst and negative catalyst differ from each other?

(i) Positive catalyst: When a catalyst increases the rate of chemical reaction, it is called positive catalyst. (ii) Negative catalyst: When a catalyst decreases the rate of chemical reaction it is called negative catalyst.

How can a reaction be thermodynamically unstable but kinetically stable?

A reaction can be thermodynamically unstable but kinetically stable because the condition are such that the rate of the reaction is zero. A mixture of coal and oxygen are kinetically stable because the condition for combustion are not obtained until the coal is heated to its ignition temperature.

What does thermodynamic stability depend on?

Thermodynamic stability depends on whether or not the reaction is spontaneous. This depends on the change in free energy (ΔG). A thermodynamically stable reaction is one that basically does not react.

Are You thermodynamically unstable in the air?

You are thermodynamically unstable in air, but don’t worry, you’re not going to spontaneously combust, which is another way of saying that you are kinetically stable. Kinetic stability refer to a pre equilibrium conditions.

Is it possible for a compound to be both stable and unstable?

The concepts “stable” and “unstable” are of thermodynamic origin. Stable means that the compound will not tend to react, and unstable that there is a great tendency to react. This is a highly stable compound, as I experienced decades ago, it is next to indestructible. However, th Yes it is possible, although the opposite is more common.