This website uses cookies to ensure you have the best experience.

# Effect Of Temperature On Raction Rate

684 words - 3 pages

Effect of temperature on RXN rate

Factors affecting rate of reaction:
Surface area – as we increase surface area, we increase the reaction rate. The more the collisions the faster the reaction.
Concentration – as we increase concentration we increase the reaction rate. In reaction with between gases, increasing the pressure, increase the reaction rate.
Temperature –     as we increase the temperature, we increase the reaction rate. Raising the temperature makes particles collide more often in a certain time, and makes it more likely that collision results in a reaction.
Catalyst -     catalyst is a substance, which speed up a chemical reaction. At the end of the reaction the catalyst is chemically unchanged.

Aim:
Effect of temperature on rate of reaction.

Hypothesis:
I predict that the rate of reaction will increase in speed by increasing the temperature, because Raising the temperature makes ...view middle of the document...

5-     Put the first solution in the flask.
6-     Put the flask in a water bath at a controlled temperature of 30ºC.
7-     Quickly add the second solution and start timing
8-     Stop timing when you can no longer see the mark (X) on the tile.
9-     Repeat steps 1 to 4 but using a different temperature each time.
10-     The final time use the same amount but at 70ºC.

Fair test:
Changing Variable:
Temperature (ºC)
Constant Variables
Amount, and concentration of HCl, and Na2S2O3

Results:

Temperature/ºC     Time/sec
20     28
25     27
30     22
35     20
40     16
45     13
50     7

Conclusion:
From my results I have concluded that temperature has a great affect on the reaction rate of HCl and Na2S2O3, because as we see from he graph the slope is increasing gradually, this is because increasing the temperature makes particles collide more often in a certain time and makes it more likely that a collision will result in a reaction. Because there are more effective collisions, temperature has a great affect on reaction rate, if you raise the temperature by 10ºC the time will decrease by nearly 6 seconds indicating the increase in speed of the reaction.

Evaluation:
From my experiment I have found some sources of error, which are that when I was adding the HCl to the Na2S2O3 I was adding quickly so some of the HCl spilt from the test tube and didn’t go inside the flask containing Na2S2O3, so my results might not be very accurate. Also when I was adding HCl to a measuring cylinder I didn’t accurately read the cm so my results might have been affected.

## Other Papers Like Effect of temperature on raction rate

### Investigating The Effect Of Temperature On The Structure Of An Enzyme

1659 words - 7 pages Investigating The Effect of Temperature on the Structure of an Enzyme Introduction: For my GCSE Biology assessment I will be investigating the enzyme amylase with the substrate starch. This reaction, which I am going to investigate, is called the protein test for starch. Aim: My intention for this observation is to examine how the enzyme catalyses are affected by changes in temperature. Safety

### Investigating The Effect Of Temperature On The Movement Of Pigment Through Cell Membranes

1017 words - 5 pages Investigating the Effect of Temperature on the Movement of Pigment through Cell Membranes INTRODUCTION: The aim of experiment is to prove that temperature effects on a proteins in cell membranes so that pigment can pass through them HYPOTHESIS: On higher temperatures proteins in membranes denature so there is no barrier to prevent the passage of large molecules THEORETICAL BACKGROUND: Certain chemicals and treatments

### Investigation Of Different Variables' Effect On The Rate Of Bounce Of A Squash Ball

2135 words - 9 pages Investigation of Different Variabes' Effect on the Rate of Bounce of a Squash Ball Aim: The aim of this experiment is to find out and observe how different variables affect the rate of bounce on a squash ball. There are many variables that affect the rate of this reaction such as the following: 1. Drop Height (Meters) 2. Surface (e.g. Grass, tarmac etc) 3. Temperature of ball (°C) 4. Drop/Throw

### The Effect Of Alcohol On The Heart Rate Of A Gammarus

1012 words - 5 pages heart rate become slower (Carlson).With this procedure, similar to the one to be carried out, it is expected the gammarus (a crustacean like that of the Daphnia) will have a decreased heart rate in ethanol as well. Therefore, if the Gammarus is subjected to increasing concentrations of alcohol, then the heart rate will decrease with the coinciding alcohol concentration increases.ProcedureIn this experiment the effect of alcohol on the heart rate of a

### The Effects of temperature on Enzymes

733 words - 3 pages ï»¿The Effects of Temperature on Enzymes Reaction Rate. INTRODUCTION Enzymes are proteins that speed up many chemical reactions in cells. Enzymes affect the rate of almost all chemical reactions which take place in organisms. Like all other proteins, enzyme function may be affected by the change in any aspect of its structure. The effect of a change in enzyme structure is called denaturation; this means that the enzyme becomes inactive

### The Effect of Wage Rate and Profit

667 words - 3 pages University of cape coast School of business MANAGERIAL ECONOMICS Assignment SB/MHR/13/0005 With a wage rate without overtime, an increase may not increase the working population of the firm as income effect of the increase will mean demand for leisure being high holding expenditure on other costs constant. This will reduce the working population and also reduced output and profit. On the other-hand, with overtime, workers who work

### How Would The Rate Of Reaction Of Bisodel Tablet Affected By Temperature?

2154 words - 9 pages that means more activation energy for collision to produce reaction. Particles movement would be quicker in warmer temperature so that reaction would be quicker, then slow down towards the end until the tablet used up. My predictions are also based on an experiment I did last year which was also about the rate of reaction and the temperature.Safety ConsiderationsTo ensure I am safe enough to carry out any experiment, basic safety protections are

### Environmental Factor on Rate of Photosynthesis

1144 words - 5 pages A. To investigate the effect of light quality on the rate of photosynthesis Procedure 1. 2. 3. 4. 5. Cut the stem of a well-illuminated piece of Hydrilla to about 10 cm long. Place it with cut surface upwards, in a boiling tube filled with 0.25% sodium hydrogencarbonate solution. Wrap the tube with red cellophane. Set up the apparatus as shown in Fig.1. Stand the tube in a beaker of water at room temperature. Record the temperature of the water

### Effect of Enzymes on Starch

2133 words - 9 pages conclusion that the presence and increase of concentration of enzymes does in fact, have a positive correlation of effect on the rate of reaction. Reliability The experiment conducted required only a small amount of precise measurement, therefore accuracy and errors are not the main factor, but instead the main issue is the method/process I chose to carry out the experiment. The experiment procedure consisted of a few simple steps: cut 4 holes

### Paper on Topic of Why Turnover Rate Has Been High

4108 words - 17 pages Executive Summary Law enforcement has been showing a high turnover rate. A high turnover rate causes many problems with the most important of these being risks to officer safety on the job. This proposal discusses the benefits of pinpointing the exact reasons for this turnover and taking the suggested steps in reducing these issues in order to retain experienced officers and reduce the turnover rate. Not only

### Effect of Climate Change on Poultry Production

1401 words - 6 pages are prevalent for most of the year. 2.0 IMPLICATION OF CLIMATIC FACTORS ON PRODUCTION Temperature is an important bio-climatic factor affecting the physiological function of layer-chickens (McDowell, 1972) though the effect on egg production rate depends on age of laying hens. The effect is more evident at old age when birds are exposed to cold climate. When temperature falls below the thermo neutral zone of below 12.8oC (which is rarely

## Related Essays

### Effect Of Water Temperature On Amylase Using Colorimetric Starch Assay

1540 words - 7 pages Timothy Pratt Wednesday, 12:20 PBIO 1210L Scientific Paper: Effect of Water Temperature on Amylase Using Colorimetric Starch Assay Introduction For plants to function properly, chemical reactions must take place within the cells of each individual plant. Energy is necessary for each reaction to occur. The amount of energy that is necessary for a reaction is called the activation energy. Enzymes are used to reach the correct activation

### The Effect Of Particle Size On The Rate Of Osmosis

594 words - 3 pages Methods, and materialsTo observe the effect of concentration on the rate of osmosis four solutions were placed into four beakers containing tap water. Solution 1 was tap water. Solution 2 was 20% sucrose, a disaccharide composed of glucose and fructose. Solution 3 was 40% sucrose. Solution 4 was 60% sucrose.The dialysis bags created artificial cells to demonstrate osmosis. The dialysis tubing was clamped at the bottom then clamped at the top

### Fed Rate Effect On Business Essay

4452 words - 18 pages The Federal Interest Rate and How it Effects Business Interest is the cost of borrowing money. You pay it in almost every facet of life and business, from taking out a home mortgage, to credit card use, to equipment loans and lines of credit. The rate that you pay or the percentage is not random and is directly correlated to the Federal Reserve Bank’s (The Fed) interest rate. The Fed’s interest rate has an endless effect on how the economy

### The Effect Of Time And Temperature On Storage Of Fresh Pechay

1591 words - 7 pages | 21.1 | Dry, thin, yellow-green | Number of days Illustration 1.Effect of temperature on the storage of fresh pechay. B. Discussion The observations and measurements obtained showed that there is a decrease in weight of the fresh pechay bunches, relative to the length of the time of storage. Comparing the weight loss of the pechay inside the refrigerator and with the one in a room temperature, there is a faster rate of loss with