Speed reaction refers to the rate at which a chemical reaction occurs, while catalyzed reaction involves the use of a catalyst to increase the speed of a reaction. A catalyst is a substance that lowers the activation energy required for a reaction to take place, therefore increasing its speed.
As temperature increases, the speed of a reaction also increases. This is because higher temperatures provide more energy to the reactant molecules, allowing them to move faster and collide more frequently, leading to a faster reaction rate.
Some common catalysts include enzymes in our bodies that help break down food, platinum in catalytic converters of cars, and yeast in bread making. Other examples include nickel in the production of margarine and iron in the Haber process for producing ammonia.
No, a catalyst does not affect the equilibrium of a reaction. It only speeds up the rate at which the reaction reaches equilibrium, but does not change the position of the equilibrium itself.
The speed of a reaction can be determined by measuring the change in concentration of reactants or products over time. This can be done by monitoring changes in color, pH, or gas volume. The steeper the slope of the curve, the faster the reaction rate.