5 Factors Affecting Rate of Reaction + Curve
The speed or rate of a chemical reaction can be slowed down or accelerated because of several factors that affect it. The factors that affect the rate of chemical reaction itself there are 5, among which are the influence of temperature, the influence of concentration, the influence of surface area, the influence of pressure, and the influence of the catalyst. Here in this article we will discuss the five factors complete with graphic illustration. Please listen and be understood!
Factors Affecting Rate of Reaction
1. Effect of Temperature on Rate of Reaction
Almost all chemical reactions will have a faster rate at higher temperatures or temperatures. The rate of chemical reaction is proportional to the magnitude of the reaction temperature.
The effect of temperature on the reaction rate can occur because the temperature rise will increase the amount of kinetic energy of each part of the reacting substance. This increased kinetic energy makes the particles move faster so that collisions between particles will also be more effective, more frequent, and faster.
From several studies and trials note that any increase in temperature as much as 10 degrees Celsius it will increase the reaction rate of 2-fold.
2. Effect of Concentration on Rate of Reaction
In addition to temperature, the concentration of reagents is also one of the factors affecting the rate of reaction. It is known that in general, the greater the concentration of the reacting substance the greater the rate or rate of the reaction.
The effect of concentration on the rate of reaction can occur because the increase in concentration will increase the number of particles of substances that react so that the possibility of collision between particles also become larger.
3. Effect of Pressure on Rate of Reaction
Some reactions exist that involve reactants in the form of gas. In such a reaction, pressure is also one of the factors affecting the rate of reaction. The greater the pressure, will make the volume of reagents smaller and make the concentration of reagents become larger. As is known, the concentration of reactant substances that are getting bigger will make the reaction rate run faster.
4. Influence of Surface Area to Rate of Reaction
The surface area of the touch is also one of the factors affecting the reaction rate. The wider a touch surface, the reaction rate will run faster. This is because the more extensive the touch surface will make the collisions that occur in the reaction will be more and more in units of time.
The effect of touch surface area on reaction rate can be proved by simple experiment. If we boil the same volume of water and the same temperature but in containers of different area then the boiling speed of water will be different. Water boiled in a container with a wide cross section will surely boil earlier than boiled water in a container with a narrow cross section.
5. Effect of Catalyst on Reaction Rate
The catalyst or catalyst is a substance that can speed up the reaction by joining the reaction itself without undergoing a change. The catalyst plays a role in the reaction process but not as a product or as a reagent.
The greater the amount of catalyst in a reaction the greater the rate of the reaction. This is because the catalyst is able to decrease the activation energy on the reacting substances causing the reactants to move and create collisions rapidly.
Examples of catalysts can be easily found around our environment. The digestive enzymes present in our bodies, for example, are also examples of complex catalysts that can accelerate the rate of food digestive reactions in our bodies. To know the function of enzymes as biocatalyst in accelerating biochemical reactions in our body please read this article.
Well, that's the explanation we can convey about factors that influence the rate of reaction. Hopefully this explanation can be easily understood and helps your difficulty in learning. If there is something elusive, please pass your question through the comment field below.
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