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Factors affecting the rate of a chemical reaction.
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INTRODUCTION A chemical reaction is a process by which one or more substances change into one or more other substances. Reactants are the substance(s) you start with and products are what you take out. A chemical reaction between two substances takes place when particles of these substances collide with each other. This either uses or releases energy. A reaction that releases energy is known as exothermic, where as a reaction that uses it up is called endothermic. This investigation looks at what affects the rate of a chemical reaction. FACTORS AFFECTING THE RATE OF A CHEMICAL REACTION Temperature: Kinetic theory says that the more energy a particle has, the more it will vibrate. In a solid, particles vibrate but do not move. They are fixed in position and cannot move past each other. They are close together and the forces between them are strong. But, if you heat them then they become a...
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