Chemistry Practicals Class 12

Chemical Kinetics: Factors Affecting Rate of a Reaction

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About Simulation

  • In this chemical kinetics experiment, you will understand the terms chemical kinetics, rate constant and rate of reaction.
  • You will understand the factors affecting the rate of a reaction, like concentration, temperature, catalyst, etc.
  • You will understand the mechanisms behind the reactions, and using it, you can find the order of the reaction.
  • The simulation includes recording time on a stopwatch for the completion of the reaction indicated by the colour change of the solution.
  • You will understand the trend of change in the concentration of reactants with time by plotting a graph.

Chemical kinetics

  • You can understand and demonstrate the iodine clock reaction in science projects using the virtual chemistry lab.

Simulation Details

Duration – 30 Minutes
Easily Accessible
Language – English
Platforms – Android & Windows


Chemical kinetics is the branch of chemistry that deals with the study of reaction rates and their mechanisms. The rate of reaction refers to the speed at which the products are formed from the reactants in a chemical reaction. The rate of reaction is different for different reactions; some chemical reactions are nearly instantaneous, whereas some reactions take more time for the completion.

The rate of reaction can be expressed as,$$\mathrm{-\frac{dc}{dt}=\frac{dp}{dt}}$$

Where −dc/dt indicates the decrease in the concentration of reactant with time while dp/dt indicates the increase in the concentration of product with time. If a graph is plotted between the concentration of reactants and products and time, the rate of formation of products and the rate of disappearance of reactants can be easily calculated.

Rate of reaction graph

In any reaction, reactant molecules get consumed with time and give a product at the same rate. On increasing the concentration of the reactant, a greater number of molecules becomes available, which can easily react with each other, thereby increasing the reaction rate.

Similarly, on increasing the temperature, the kinetic energy of the molecules increases, which increases the number of collisions and hence results in the completion of the reaction in a short time.


Watch this video to learn more about chemistry.

Requirements for this Science Experiment

Stopwatch Hot Plate Conical Flasks Measuring Cylinders Beakers White Tile With a Cross Mark

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