(855) 4-ESSAYS

Type a new keyword(s) and press Enter to search

Effect of Temperature on the Rate of Reaction.


             I will make this investigation a fair test, by not altering the amount of Sodium thiosulphate and hydrochloric acid and measuring accurately. I will also ensure that the optimum conditions are provided for the reaction to take place. This involves thoroughly rinsing out the beaker before adding the next solution in order to prevent reaction prior to the experiment. Only the temperature of the reactants is changed. The temperature range is going to be 30 - 80 degrees increasing at every 10 degrees celcius.
             Prediction/ Hypothesis: .
             I predict that as the temperature increases by 10 degrees the rate of reaction doubles. This is because at low temperatures the particles reacting do not have that much energy to react. However when substances are heated, they gain kinetic energy and this causes them to move faster and collide more often. As this occurs bonds are broken between particles and new ones are formed. This is because the collisions have more energy and collisions are successful. Therefore the higher the temperature, the faster the cross disappears.
             Table of Results:.
             Temperature.
             Degrees Celsius. Time 1.
             (seconds) Time 2.
             (seconds) Average .
             Reading. Rate of Reaction.
             (Rate = 1/Time.).
             .
             30`c 9secs 20secs 14.5secs 0.06s-1.
             40`c 7secs 19secs 13secs 0.07s-1.
             50`c 13secs 12secs 12.5secs 0.08s-1.
             60`c 8secs 9secs 8.5secs 0.11s-1.
             70`c 6secs 7secs 6.5secs 0.14s-1.
             80`c 5secs 5secs 5secs 0.2s-1.
             Results:.
             Having carried out this investigation, we see that from the results the highest reading was 20`C with the lowest reaction rate of 0.06s-1. The lowest reading was 5secs with the highest reaction rate of 0.2s-1. This clearly shows that the less time the chemical reaction takes to complete the faster the rate of reaction.
             Graphic Results:.
             Looking at the graphic presentation of my results, I can notice a distinct trend. I notice that as I increase temperature by 10`C the rate of reaction increases equally well and becomes faster. .
             Analysis:.


Essays Related to Effect of Temperature on the Rate of Reaction.

1. Effects of Temperature on the Rate of Photosynthesis in Elod

Carbon dioxide concentration will directly affect the rate of photosynthesis as it is used in the photosynthesis reaction. ... Temperature affects the rate of chemical reactions and is important in the light - dependent stage of the photosynthetic process because the reactions are enzyme controlled. ... As the temperature is increased, molecules in the cells will be moving at a faster rate. ... As predicted, I said that this would continue happening until the rate of photosynthesis has reached its optimum temperature; which is when increasing the temperature will have no more effect on the r...

  • Word Count: 1748
  • Approx Pages: 7
  • Grade Level: High School

2. The Effect of Concentration and Temperature on the Rate

INTRODUCTION: Different features influence the reaction rate: (a.) 1st warm/cold temperature (meaning, the change in temperature). ... During this Lab work we conducted experiments that helped us to find what and how is a solutions reaction rate effected by the change of temperature and different concentration. ... HYPOTHESIS: My hypothesis is that the higher the temperature the faster the reaction rate because of the faster moving particles, and the higher the concentration of Na2S2O3 (less dense solution with more water) the...

  • Word Count: 611
  • Approx Pages: 2
  • Grade Level: High School

3. Rates of Reaction Coursework - Hydrogen Peroxide and Catalas

The purer the Hydrogen Peroxide, the quicker the reaction rate. ... Different reactions have different rates. ... Altering a rate of reaction In order for a molecular collision to have an effect it must meet the following 2 conditions: 1. ... Temperature - this is arguably one of the best ways to alter the rate of a chemical reaction. ... Increasing the temperature increases the reaction rate. ...

  • Word Count: 2748
  • Approx Pages: 11
  • Grade Level: High School

4. The Effect of Temperature on an Enzyme

This means that enzymes work to speed up the rate the biochemical reactions occur, so that chemicals that are required for life functions are made at a faster rate. The purpose of t his experiment is to determine how temperature affects the rate of catalysis of an enzyme. ... Hypothesis: As the temperature increases, the rate of enzyme activity should increase. This is because increasing the temperature can usually speed up chemical reactions. ... Reaction (Warm) Disk fell to bottom of test tube and came back up after several seconds on the bottom Reaction (Hot) Disk fell to bottom of test tu...

  • Word Count: 638
  • Approx Pages: 3
  • Grade Level: High School

5. Temperature and the Rate of Respiration in Saccharomyces

Abstract The purpose of this experiment was to test the effect of four different temperatures on the rate of fermentation in Saccharomyces by measuring the rate of carbon dioxide production. ... I hypothesized that as temperature increases, the rate will also increase, until a certain optimum temperature, after which, the rate will decrease until the rate is zero as respiration has stopped completely. ... Enzymes speed up reactions in organisms. ... At 37∘C, the reaction rate reaches its peak. At temperatures above 37∘C the amount of CO2 bubbles decreases, the reaction rate slow...

  • Word Count: 1119
  • Approx Pages: 4
  • Has Bibliography
  • Grade Level: Undergraduate

6. The Effect of Temperature on Amylase Activity

The Effect of Temperature on Amylase Activity Discussion Our experiment demonstrated how different temperatures affected the rate of activity of amylase. Our results show that activity rate increases with temperature up to a certain point and then begins to decline. This only partially supported our hypothesis, that the rate of activity would increase as a function of rise in temperature. ... Temperature appears to be a major factor of enzyme activity rate. ... With additional data of reaction time vs. temperature we...

  • Word Count: 419
  • Approx Pages: 2
  • Has Bibliography
  • Grade Level: Undergraduate

7. A Temperature Effect

INTRODUCTION Enzymes are protein catalysts that speed up the rate of specific biological reactions. ... Numerous reactions occur within a cell and it is the enzyme's job to assist by reducing the activation energy required to set a reaction going. ... (http://www.chem.wsu.edu 2) In this experiment the purpose was to see if temperature has an effect on the activity of catalysts. ... After each tube is in its designated place, let them sit for five minutes (enough time for the reactions to occur). ... CONCLUSION After the experiment, our original hypothesis, seeing if temperature...

  • Word Count: 510
  • Approx Pages: 2
  • Has Bibliography
  • Grade Level: High School

8. Temperature, pH and Substrate on Enzymes

Enzymes are used as catalysts to lower the amount of activation energy and speed up the rates of reactions which is shown in the work "Activation Energy: Kick starting Chemical Reactions" by Vance Kite. ... The very first thing that was tested was the effect of different temperatures on enzymatic activity. ... The rate of reaction was .14 (cm/s) for the Catalase that was 90 degrees Celsius and .23 (cm/s) for the Catalase that was 50 degrees Celsius. ... On the second part of the lab, pH of the enzyme's effect of enzymatic activity was tested. ... The last final part of the la...

  • Word Count: 2123
  • Approx Pages: 8
  • Has Bibliography
  • Grade Level: High School

9. rate of reaction

Investigation into the Rate Of Reactions Area P: Planning I am investigation how concentration effects the rate of reaction. ... The container in which the reaction takes place will also effect the time it takes for the cross to disappear. ... The reaction rate is equal to one over the time it took. Reaction time will be measured in second and reaction rate s-1. ... Concentration increases the rate of reaction. ...

  • Word Count: 1509
  • Approx Pages: 6
  • Grade Level: High School

Got a writing question? Ask our professional writer!
Submit My Question