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# What is law of mass action and explain it?

## What is law of mass action and explain it?

law of mass action, law stating that the rate of any chemical reaction is proportional to the product of the masses of the reacting substances, with each mass raised to a power equal to the coefficient that occurs in the chemical equation.

### Who discovered chemical equilibrium?

The development of thermodynamic theory of equilibria—in particular, equilibria of chemical reactions—owed much to J. W. Gibbs (1873-1878) and Le Chatelier (1885), who discovered the principle of displacement of equilibria under conditions of external change.

Who has given law of mass action?

Just over 150 years ago, on 15 March 1864, Peter Waage and Cato Guldberg (Figure 1) published a paper in which they propounded what has come to be known as the Law of Mass Action 1. In this article we review the history of its discovery and early applications in pharmacology.

What is the law of mass action MCAT?

The Law of Mass Action links the rate of a chemical reaction as proportional to the concentrations of the reactants and products in a chemical reaction. For a chemical reaction mixture that is in equilibrium, the ratio between the concentration of the reactants and products is constant.

## What is the importance of mass action law?

This law can be used to explain the behavior exhibited by solutions in dynamic equilibria. The law of mass action also suggests that the ratio of the reactant concentration and the product concentration is constant at a state of chemical equilibrium.

### Who discovered reversible reactions?

Berthollet
The concept of a reversible reaction was introduced by Berthollet in 1803, after he had observed the formation of sodium carbonate crystals at the edge of a salt lake (one of the natron lakes in Egypt, in limestone):

Who invented kinetics?

In 1864, Peter Waage and Cato Guldberg pioneered the development of chemical kinetics by formulating the law of mass action, which states that the speed of a chemical reaction is proportional to the quantity of the reacting substances.

What is law of mass action example?

For example, if the temperature in a system containing a mixture of ice and water is uniformly 273.15 K, the net amount of ice formed and melted will be zero. The amount of liquid water will also remain constant, if no vapor escapes from the system.

## What are the importance of law of mass action?

### Is kinetics on the MCAT?

The MCAT may test your ability to determine if a certain product is a kinetic or thermodynamic product. Thus, it will be important to be able to determine activation energy and compare these quantities.

Is law of mass action and equilibrium law same?

The law of mass action is concerned with the position of equilibrium in a reversible reaction i.e. at equilibrium both forward and back reactions are taking place at equal rates. The law of mass action says nothing about this rate but only tells us what the reactant and product concentrations will be at equilibrium.