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Reaction rate and temperature
Rate of reaction experiments
Rate of reaction experiments
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Recommended: Reaction rate and temperature
The experiment’s purpose was to determine whether the rate of reaction was impacted by reactant concentration or temperature. Based on scientific research, it was said that if the reactant concentration was increased, then the rate of reaction would also increase. Also, if the reactant temperature was increased, it was believed the rate of reaction would increase as well due to the increased kinetic energy and speed of the molecules. Based on the results, my first hypothesis was not true. The reaction with the lowest concentration of pea extract had the fastest rate of reaction, while the highest concentrated pea extract finished second. The second hypothesis was found to be both true and false because the warmest temperature reaction
For example, substrate concentration, enzyme concentration, and temperature could all be factors that affected the chemical reactions in our experiment. The concentration of substrate, in this case, would not have an affect on how the bovine liver catalase and the yeast would react. The reason why is because in both instances, the substrate (hydrogen peroxide) concentration was 1.5%. Therefore, the hydrogen peroxide would saturate the enzyme and produce the maximum rate of the chemical reaction. The other factor that could affect the rate of reaction is enzyme concentration. Evidently, higher concentrations of catalase in the bovine liver produced faster reactions, and the opposite occurs for lower concentrations of catalase. More enzymes in the catalase solution would collide with the hydrogen peroxide substrate. However, the yeast would react slower than the 400 U/mL solution, but faster than the 40 U/mL. Based on this evidence, I would conclude that the yeast has a higher enzyme concentration than 40 U/mL, but lower than 400
Input variables In this experiment there are two main factors that can affect the rate of the reaction. These key factors can change the rate of the reaction by either increasing it or decreasing it. These were considered and controlled so that they did not disrupt the success of the experiment. Temperature-
It is important however to note that the NH4 and K ions are still in
the acid was at 14 C the magnesium took 141 seconds to react and 27 C
The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
In a substance the rate of reaction will be quicker if it has a large
Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase. Pressure does not affect them much when they are either solids or liquids.
How Temperature Affects the Rate of Reaction in the Reaction of Magnesium and Hydrochloric Acid
· We then got a square piece of paper and then placed it on the
4. I need to make sure the gas syringe is at 0 and I use the timer
Before conducting my experiment I will research into, amongst other things, the factors that affect the rate of a reaction. This is so that I may enough information to understand the effect of temperature on the rate of a reaction and also gain appropriate understanding to make a suitable prediction as to what the outcome of my experiment will be.
The aim of my investigation is to find out whether the increase of temperature increases the rate of reaction between the two reactants of Sodium Thiosulphate and Hydrochloric acid. I will then find out and evaluate on how temperature affects this particular reaction. Factors There are four main factors, which affect the rate of reaction that are considered as variables for the experiment I will be doing, they are the following: Molecules can only collide when two of them meet together.
Age and gender of a person have a slight effect of the body`s temperature. Due to the fact as you age your body finds it harder to control the core body temperature, meaning you could be less aware of yourself overheating or have a lessened realization/awareness of a sudden drop in your body's temperature . A newborn baby can also have difficulty with core temperature and could be high one moment and low the next , but after one year the baby ages and starts to develop, the temperature will become normal. The affect of gender with core temperature is slight , but it's still there and could be useful to know if someone is actually running a fever or not. Taking data from an experiment conducted by Carl Reinhold August Wunderlich who examined over a million temperatures taken from the armpit he deduced the normal , or “average” body temperature for an adult was 98.6 degrees fahrenheit , and saw that woman had a slightly
The pH of the solution would alter the rate of the reaction if it was
Aims and Objectives Introduction: In this coursework, I will be conducting an experiment. to show that a particular factor affects the rate of a chemical reaction. The main factors include concentration/pressure of the reactants. presence of catalysts, particle size, and temperature.