Tugas kimia laju reaksi

But very quickly and carefully, I'm going to light the gas. Well, where the delta of the reaction is the change in the concentration of the reaction and the delta of the product is the change in the concentration of the product in the period of delta t. There are several factors that affect the rate of reaction. Among others, the first one is concentration. The higher the concentration of the reaction, the greater the probability of a collision between molecules, so that the rate of reaction increases. 2. Temperature The increase in temperature usually increases the rate of reaction because the molecules move faster, increasing the frequency and energy of collision. 3. Catalyst Catalyst is a substance that increases the rate of reaction without reacting. Catalyst works by reducing the energy of the activity required for the reaction to occur. 4. Surface area The larger the surface area of ​​the reaction, the more areas are available for collision, so that the rate of reaction increases. This is especially true for the reaction in the solid phase. 5. Pressure For a reaction that involves gas, the increase in pressure will increase the concentration of gas, so that the rate of reaction increases. 6. Presence Inhibitor Inhibitor is a substance that reduces the rate of reaction by blocking the reaction or reducing the effectiveness of the catalyst. Examples of rate of reaction The following are some examples that illustrate the rate of reaction. 1. Wood burning If the wood is burned, an oxidation reaction occurs where the wood reacts with oxygen to produce carbon dioxide, water, and energy. Factors that affect, such as the addition of oxygen, for example by blocking the air, will accelerate combustion because the oxygen concentration increases. 2. Hydrogen peroxide decomposition reaction Hydrogen peroxide naturally decomposes into water or H2O and oxygen gas O2. This reaction can be accelerated by adding a catalyst such as manganese dioxide or MnO2. Factors that affect, such as the addition of MnO2 catalysts will accelerate the reaction. 3. Wet acid reaction For example, the reaction between HCl chloride acid and NaOH hydroxide produces NaCl chloride and H2O water. Factors that affect, higher concentration of HCl and NaOH will speed up the reaction.