The Effect of Temperature on the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid Sodium chloride + Sulphur dioxide + Sulphur Plan The rate of reaction is the speed that the reaction occurs at. It can be effected by the following: * Concentration of reactants * Temperature * Surface area of reactants * Presence of a catalyst Out of those factors, I am going to investigate the effect temperature has on the rate of reaction. I will do this by recording the time it takes for the cross to disappear. I think that as the temperature increases, the rate of reaction will increase. The graph below shows what I think my results will look like. If you increase the temperature by 10°C, you approximately double the rate of many reactions. [IMAGE] [IMAGE] The reason why I think that increasing the temperature will cause the rate of reaction to increase is because of the collision theory. The collision theory says that the particles of the reactants must collide with each other, with enough energy in order to be effective and make the chemical reaction occur. In order for the particles to react with each other, they need a minimum amount of energy. This is known as the activation energy. If the colliding particles have less than the activation energy, the particles just bounce off each other and no reaction occurs. When you increase the temperature, the particles gain energy and move around more. This means that they are more likely to collide with another particle and allow the chemical reaction to occur. The fact that there are more collisions taking place in the same amount time, it means that the rate of reaction will have increased. Another reason why, as the temperature is increased, the rate of reaction will increase, is because as the particles gain energy they move around faster and so, they collide with more force.
The purpose of the experiment is to study the rate of reaction through varying of concentrations of a catalyst or temperatures with a constant pH, and through the data obtained the rate law, constants, and activation energies can be experimentally determined. The rate law determines how the speed of a reaction occurs thus allowing the study of the overall mechanism formation in reactions. In the general form of the rate law it is A + B C or r=k[A]x[B]y. The rate of reaction can be affected by the concentration such as A and B in the previous equation, order of reactions, and the rate constant with each species in an overall chemical reaction. As a result, the rate law must be determined experimentally. In general, in a multi-step reac...
the acid was at 14 C the magnesium took 141 seconds to react and 27 C
Rate of reaction is the speed of reaction. In essays written by young scientists, they have used concentration as variable in their experiments; some have used a light sensor. connected to a data logger, to measure the amount of light passing. through the "cloudy" liquid. 1 moles = 6.02 1023 The particles in the hydrochloric acid and sodium thiosulphate need to
to be done. This was to find out what amount of each liquid would be
The Effect of Temperature on The Rate Of Reaction Between Magnesium And Hydrochloric Acid Planning I'm planning on investigating how temperature effects the reaction between magnesium and hydrochloric acid, the experiment will show whether the reaction will speed up or slow down with the change in temperature. Temperatures will range from room temp up until 70 degrees. The investigation will be a fair test because all quantities will remain the same for each test, each test will use the same amounts of hydrochloric acid and same size of magnesium, also the concentration of the acid will also not be changed. APPERATUS; · Conical flask · Bunsen Burner · Thermometer · Tri-pod · Protective matt · Stopwatch · Gauze · Measuring jug · Goggles
The Effect of Temperature on the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
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-
The Effect of Temperature of Hydrochloric Acid on the Rate of Reaction Between Hydrochloric Acid and Magnesium
Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that has formed from the reactants.
from 10cm to 50cm to make it easier to see the difference in a graph.
Investigating the Effects of Temperature on the Rate of Reaction between Magnesium and Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
acid and water to see how it affects the rate of reaction. I will use
My aim in this piece of work is to see the effect of temperature on the rate of a reaction in a solution of hydrochloric acid containing sodium thiosulphate.
The temperature at which the reaction is carried out Use of a catalyst Reaction equation is mentioned above but rate equation can only be decided by doing experiments. So, the following procedure can be used to carry out the experiment. Plan Equipment 2 Measuring cylinders Beaker Stopwatch Paper with black cross on it Sodium Thiosulphate (different concentrations) Hydrochloric acid (same concentration each time) Water (different concentrations) Pipette. Prediction I predict that the greater the concentration of sodium thiosulphate solution, the faster the chemical reaction will take place.