# What is the law of mass action

## What do you mean by law of mass action?

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.

## What is Rate law and law of mass action?

The rate law is composed of rate constant and concentration of the reactants with the order of overall reaction. The law of mass action equation consists of a concentration of reactants and products raised to the power of the stoichiometric coefficient.

## Why is the law of mass action important?

The mass action law gives us a general method to write the expression for the equilibrium constant of any reaction. At this stage, you should be able to write the equilibrium expression for any reaction equation.

## Is law of mass action and law of chemical equilibrium same?

The law of mass action states that the rate of a reaction is proportional to the product of the concentrations of each reactant. … 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.

Peter Waage

## What is active mass formula?

Active Mass = w /mV(l)

## What is positive catalyst give an example?

Positive Catalysts

Example: In the preparation of NH3 by Haber’s process Iron oxide acts as a positive catalyst and increases the yield of ammonia in spite of less reaction of Nitrogen.

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## What is the difference between rate law and rate constant?

A rate law is an expression showing the relationship of the reaction rate to the concentrations of each reactant. … A large value of the rate constant means that the reaction is relatively fast, while a small value of the rate constant means that the reaction is relatively slow.1 мая 2013 г.

## What is rate law expression?

Rate laws or rate equations are mathematical expressions that describe the relationship between the rate of a chemical reaction and the concentration of its reactants. In general, a rate law (or differential rate law, as it is sometimes called) takes this form: rate=k[A]m[B]n[C]p… rate = k [ A ] m [ B ] n [ C ] p …

## Who is mass?

Mass is a measure of the amount of matter in an object. Mass is usually measured in grams (g) or kilograms (kg). … An object’s mass is constant in all circumstances; contrast this with its weight, a force that depends on gravity. Your mass on the earth and the moon are identical.

## Does law of mass action apply on the following reaction?

Yes, law of mass action apply here.

According to the law of mass action, mass of reactants is always equal to the mass of products. … of molecules in reactants is 4 and that of products is also 4. hence, the law is applicable here.

## What is positive catalyst?

Positive Catalysts:

Positive catalysts lower the energy of activation needed for a reaction to occur. This often speeds up the rate at which the reaction can occur, but it can also allow some reactions to occur that might otherwise be impossible.

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## What is the law of chemical equilibrium?

n (chemistry) the principle that (at chemical equilibrium) in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction. Synonyms: equilibrium law Type of: law, law of nature.

## What is meant by equilibrium position?

(noun) The point in a chemical reaction at which the concentrations of reactants and products are no longer changing.