To investigate the effect of temperature on the rate of reaction
Background Information:
Chemical reactions take place all the time at many different rates,
some are incredibly fast like an explosion-where you get no time to
see what's happening or like rusting which could take years before the
iron is completely rusted.
The rate of reaction is extremely important because you need to know
how long before the end of the session or you may not get results in
time. In living organisms it's vital that all the chemical reactions
take place at the rates which supply the cells with the things they
need exactly when they need them.
Reaction rates are also important in the chemical industry as in any
industrial process the ultimate purpose is to make money by producing
useful products. In the chemical industry this means it's important to
make as much of the desired product as cheaply as possible which means
that the rate of reaction must be fast enough to make as much of the
product as quickly as possible without risking overheating or
explosions and without costing too much! How money hungry are we eh?
Successful chemistry, whether microscopic or at a chemical plant,
depends on controlling the rate of the ongoing reactions. In order to
understand what affects the rate of chemical reactions and how we can
control them we need to measure the rate of the reaction. The two ways
to do this are measuring how quickly the reactants are used up or we
can observe how quickly products are formed. Once we have a
measurement for the reaction under one set of conditions, we can
change them and make comparisons of the changing reaction rate under
different conditions.
There are 3 ways to measure the rate of reaction. We can measure a
change in mass, if the reaction involves a gas being given off. The
mass disappearing can easily be measured and recorded over a period of
time. Another way to see is by measuring the rate of precipitation.
When an insoluble solid forms as a solid in solution, the solution
will gradually become more and more opaque. Paper with a mark on it
can be used and the time taken for the mark to become invisible can be
recorded. Another way to measure the precipitation rate is to use a
light meter and data logger to record the amount of light transmitted.
Finally, the last way is to measure the volume of gas given off; using
a syringe but this can only be used when a gas is given off.
The rate of reaction depends on four things: temperature increases the
Investigating Rates of Reactions My aim is to investigate what factors affect the rate of reaction between magnesium and hydrochloric acid. The factor that I will be focusing on is the concentration of Hydrochloric acid. [IMAGE]Reaction Equation: Mg (s) +2HCl (aq) = MgCl2 (aq) +H2 (g)
the large beaker pour in some more hot water or if it is too hot pour
reaction is the rate of loss of a reactant or the rate of formation of
will result in an increase in the speed of the rate of reaction it has
The Effect of Temperature on the Rate of a Reaction Aim and Hypothesis The investigation that we have chosen to do is how the effect of temperature affects the rate of reaction of hydrogen peroxide to water and oxygen using the enzyme catalase. I predict that the higher the temperature the faster the rate of reaction will be and the more oxygen there will be given off. I've based this prediction on kinetic theory (every 10 degree rise in temperature the rate of reaction doubles.) This is because the substrate will lock on twice as fast, as it is travelling twice as fast.
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
Rate is determined on how fast something is being consumed in a reaction, or how
4. I need to make sure the gas syringe is at 0 and I use the timer
To begin with, the surface area of reactant impacts on the reaction time is because the rate of the surface area depends on how much surface area is exposed to the conduction; for example, if there is a cube of sugar, and a pile of sugar flower of the same mass as the cubes, the powder will always dissolve faster than the sugar cubes in water if the temperature are the same, this is because the sugar cube need to dissolve the outside of the layer of sugar before the inside sugar is exposed to water; therefore the more surface area, the faster the reaction, conversely, the less surface area, the slower the reaction. Furthermore, the concentration of reactant also affects the reaction rate, this is because chemical reactions must have contact or collision of particles in order to create reaction, therefore the greater the concentration of the reactant is, the greater collision would happen in each second, which therefore increases the rate of reaction. Lastly, 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
The pH of the solution would alter the rate of the reaction if it was
Rate of Reaction Investigation Aim: To determine how changing the concentration of a reactant (Na S O ) affects the rate of the reaction. Prediction: I predict that when we increase the concentration, the rate will increase; therefore there are more particles and a greater probability of a collision. If more particles are present in the same volume, they will be closer together. This means they have a higher probability of colliding and speeding up the reaction. If we double the concentration, the rate will also double.
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 Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
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.