How does the concentration of reactant affect the rate of a reaction?

Answer 1

Increasing the concentration increases the molecules' collision frequency.

Answer 2

Increasing the concentration increases the molecules' collision frequency.

Answer 3

The answer will depend on the "order" of the reaction. Some reactions are zero order, and changing the concentration will not affect the rate. If first order, doubling the concentration of the reactant will double the rate. If second order, doubling the concentration of the reactant will quadruple the rate.

Answer 4

There is a near-infinite list of what might effect reaction rates. Major, common factors are Temperature, Pressure, Solvent Concentration, Solute Concentration, Sterics, Size (Surface area) Catalysts, Concentration and light .

The rate of reaction is determined by the Activation Energy (Ea, Delta G 'double dagger'). It is the pathway of the reaction that can be shorter in the presence of enzymes or catalysts.

Answer 5

During chemical reactions, chemical bonds are broken and new bonds are formed. The nature (or type) of these chemical bonds - and how readily they are broken and formed - plays a critical role in the rate of a reaction. When the reaction involves primarily the exchange of electrons , reactions tend to be very rapid.

Answer 6

In order for a chemical reaction to occur, particles comprising the reacting substances have to collide with each other. Higher concentration simply means you have more particles in the same space, meaning higher frequency of collision, hence higher rate of reaction

Answer 7

Increasing the concentration increases the rate of the reaction (Apex 2021)

Answer 8

The increase in concentration of the reactants increases the speed of a reaction.

Answer 9

Increasing the concentration of the reactants increases the rate of the reaction.

Answer 10

When the concentration of reactants is higher and a catalyst is used the reaction rate is higher.