What can change the rate constant?

These are all included in the so-called rate constant (k)- which is only actually constant if all you are changing is the concentration of the reactants. If you change the temperature or the catalyst, for example, the rate constant changes.

What are the factors affecting to rate?

The factors that affect reaction rates are:

• surface area of a solid reactant.
• concentration or pressure of a reactant.
• temperature.
• nature of the reactants.
• presence/absence of a catalyst.

What are the 4 factors that can affect rate?

Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.

How do you increase rate constant?

The rate constant goes on increasing as the temperature goes up, but the rate of increase falls off quite rapidly at higher temperatures. A catalyst will provide a route for the reaction with a lower activation energy.

On which of the following factors rate constant does not depends?

Evidently, the Rate constant does not depend upon the unit of concentration for reaction of first order. Hence, the correct option is (B) first. Note: Rate of the reaction(r) is change in concentration with respect to time.

Does frequency factor affect rate constant?

You can use the Arrhenius equation to show the effect of a change of temperature on the rate constant – and therefore on the rate of the reaction. The frequency factor, A, in the equation is approximately constant for such a small temperature change.

What three factors affect the rate of reaction?

The rate of a chemical reaction is influenced by many different factors, including reactant concentration, surface area, temperature, and catalysts.

Which factor affected the rate of reaction?

How do you find the magnitude of a rate constant?

To find the units of a rate constant for a particular rate law, simply divide the units of rate by the units of molarity in the concentration term of the rate law.