By J. Carlos Martínez<br />TOPIC 1. LAB ACTIVITY 2<br />1r. Batx.<br />¡The effect of temperature changes on reaction rate...
Basic Instructions:<br />MENU<br />SAFETY<br />Purpose and procedure.<br />EXPERIMENTS:<br />-Temperature 1<br />-Temperat...
MATERIALS, REQUIREMENTS<br />Timer<br />Glasses <br />Gloves<br />Heater<br />3 Syringes.<br />White paper<br />Thermomete...
Experiment 1<br />Place 5 cm3  of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in ...
Experiment 2<br />Place 5 cm3  of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in ...
Experiment 3<br />Place 5 cm3  of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in ...
Experiment 4<br />Place 5 cm3  of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in ...
GRAPH<br />Temperature (ºC)<br />Time (sec)<br />
Results<br />REACTION:<br />5(COOH)2 (aq) + 6H+ + 2MnO4-        2Mn2+(aq) + 10CO2 (g) + 8H2O(l)<br />
Questions<br />State the aim of the experiment.                                    I think that the aim of the experiment ...
CONCLUSION<br />My conclusion is this:<br /> When we increase the temperature of the solution, the time of change colour d...
Effect Temperature reaction rate
Upcoming SlideShare
Loading in...5
×

Effect Temperature reaction rate

2,328

Published on

the effect of temperature changes on reaction rate

Published in: Education
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
2,328
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
45
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Effect Temperature reaction rate

  1. 1. By J. Carlos Martínez<br />TOPIC 1. LAB ACTIVITY 2<br />1r. Batx.<br />¡The effect of temperature changes on reaction rate!<br />
  2. 2. Basic Instructions:<br />MENU<br />SAFETY<br />Purpose and procedure.<br />EXPERIMENTS:<br />-Temperature 1<br />-Temperature 2<br />-Temperature 3<br />-Temperature 4<br /><ul><li>To avoid the danger in the laboratory, you always mustn’t smell a chemical reaction directly. Because the product can be for example: Ammonia. This smell is very dangerous for the human because is very irritant and after if you smell the ammonia you will have some ache or irritation in your nose. And remember that you mustn’t touch any substance.</li></li></ul><li>PURPOSE and procedure<br />To observe a type of chemical reaction.<br />To predict the products of each.<br />To write the things that we observe.<br />Using syringes add 5 cm3 of sulphuric acid, 2 cm3 of potassium permanganate solution and 40 cm3 of water to a dry glass beaker.<br />Heat the mixture to about 40º C/50º C/60º C/70º C.<br />Place the beaker on a white tale.<br />Add the oxalic acid to the mixture in the beaker as soon as possible and at the same time start the timer.<br />Gently stir the reaction mixture with the thermometer.<br />When the reaction mixture just turn colourless stop the timer and record the time (in seconds). Measure and record the temperature of the reaction mixture.<br />Work out the reaction rate.<br />Repeat this procedures another three times but at higher temperatures. <br />
  3. 3. MATERIALS, REQUIREMENTS<br />Timer<br />Glasses <br />Gloves<br />Heater<br />3 Syringes.<br />White paper<br />Thermometer<br />Distilled water<br />Graduated Cylinder<br />100 cm3 glass beaker<br />600 cm3 glass beaker<br />0,2 M Oxalic acid<br />1 M Sulphuric acid<br />0,02 M Potassium permanganate <br />
  4. 4. Experiment 1<br />Place 5 cm3 of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in the 600 cm3 distilled water.<br />Put the Erlenmeyer flask into the 600 cm3 beaker.<br />Put the heater into the 600 cm3 beaker and heat the distilled water.<br />When the solution that is in the Erlenmeyer flask arrives to 40º C, we put off the flask.<br />Measure the time with the timer until the solution changes its colour.<br />In 40º C, thesolutionchangeditscolour in 135 seconds. <br />
  5. 5. Experiment 2<br />Place 5 cm3 of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in the 600 cm3 distilled water.<br />Put the Erlenmeyer flask into the 600 cm3 beaker.<br />Put the heater into the 600 cm3 beaker and heat the distilled water.<br />When the solution that is in the Erlenmeyer flask arrives to 50º C, we put off the flask.<br />Measure the time with the timer until the solution changes its colour.<br />In 50º C, thesolutionchangeditscolour in 48 seconds. <br />
  6. 6. Experiment 3<br />Place 5 cm3 of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in the 600 cm3 distilled water.<br />Put the Erlenmeyer flask into the 600 cm3 beaker.<br />Put the heater into the 600 cm3 beaker and heat the distilled water.<br />When the solution that is in the Erlenmeyer flask arrives to 60º C, we put off the flask.<br />Measure the time with the timer until the solution changes its colour.<br />In 60º C, thesolutionchangeditscolour in 25 seconds. <br />
  7. 7. Experiment 4<br />Place 5 cm3 of sulphuric acid and 2 cm3 of potassium permanganate in an Erlenmeyer flask. <br />Put in the 600 cm3 distilled water.<br />Put the Erlenmeyer flask into the 600 cm3 beaker.<br />Put the heater into the 600 cm3 beaker and heat the distilled water.<br />When the solution that is in the Erlenmeyer flask arrives to 70º C, we put off the flask.<br />Measure the time with the timer until the solution changes its colour.<br />In 70º C, thesolutionchangeditscolour in 8 seconds. <br />
  8. 8. GRAPH<br />Temperature (ºC)<br />Time (sec)<br />
  9. 9. Results<br />REACTION:<br />5(COOH)2 (aq) + 6H+ + 2MnO4- 2Mn2+(aq) + 10CO2 (g) + 8H2O(l)<br />
  10. 10. Questions<br />State the aim of the experiment. I think that the aim of the experiment is that we can see how afects the temperature in a solution that it is changing its colour.<br />State two factors which had to be kept constant in the experiments. The volume of the different substances and the same substances (Oxalic acid…)<br />How was the rate of the reaction determined?<br /> The rate of reaction was determined by the temperature. If the temperature increases, the rate of reaction increases.<br />
  11. 11. CONCLUSION<br />My conclusion is this:<br /> When we increase the temperature of the solution, the time of change colour decreases because the rate of reaction increases. <br />
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×