Subject: Science
Chemical reactions occur at different rates, with reactant and product concentrations varying with time. Factors affecting the rate of chemical reactions include catalysts, temperature, pressure, surface area, and light. Positive catalysts accelerate reactions, while negative catalysts slow them down. Increased pressure, a larger surface area, and light also affect reaction speed.
Different chemical reactions occur at different rates. While some reactions happen quickly, others happen slowly. For instance, the iron rusts slowly, whereas the interaction between an acid and a base happens quickly. Therefore, the rate of any chemical reaction is defined as the amount of reactants to products that occur per unit of time. Reactant concentrations are at their maximum and product concentrations are at zero during the early stages of a reaction since no product has yet to develop. The concentration of reactants decreases and the concentration of the product increases as soon as the reaction begins. As a result, during a chemical reaction, the concentrations of the reactants and products vary with time.
Factors Affecting the Rate of Chemical Reaction
© 2021 Saralmind. All Rights Reserved.