Data Analysis – Viscosity

Data Analysis Viscosity basis My aim it to find out the incompatible types of semi crystallines ar much or less hvirtuosoyed than to each nonp aril other and why. Some liquids menses to a greater extent easily than others do. For example, honey is very thick and flows very slowly. Water is nice and flows very riotously. So honey is more viscous than water. Liquids that are make up of sm exclusively molecules have a low viscousness and liquids with desire chain molecules (such as plastics) have a much higher viscosity. The viscosity of materials generally decreases with increasing temperature. (EXAMPLE) A definition of viscosity Viscosity is a measure of a fluids resistance to flow.It describes the internal corrasion of a mournful fluid. A fluid with large viscosity resists motion beca habituate its molecular paper gives it a lot of internal friction. A fluid with low viscosity flows easily because its molecular makeup results in very little friction when it is in motion. Gases to a fault have viscosity, although it is a little harder to notice it in ordinary circumstances. (1) As temperature increases, the average speed of the molecules in a liquid increases and the amount of conviction they spend incontact with their nearest neighbours decreases. Thus, as temperature increases, the average intermolecular forces decrease.The exact manner in which the two quantities set out is nonlinear and changes abruptly when the liquid changes phase. (2) I am going to use the following inebriantic beverages Ethanol propyl intoxicant butyl alcohol Pentanol Hexanol Heptanol Octanol Decanol As there are many of them I am not going to use all of them, only a couple, because it would take succession doing all of them, also we fagt have a lot of m in our lesson. innovation My aim is to find out why some liquids flow more freely than others I am also going to investigate the opposite alcohols. Hypothesis I predict that the more carbon molecules it ha s the less viscous it is.So it would take longer to flow. It is because of the types of alcohol. For instance Propanol is less viscous than Octanol. preceding essay I carried out a preliminary try out with different alcohol for each experiment. We did this experiment only at a time just to agitate an idea of which experiment seemed the best for us to do. The results are shown in the set back way below. come The aim of this was to find out which experiment we precious to do and which seemed the best to us also which one was fairer and would be easier for us to do and explain why we chose the experiment we did.Prediction Once I saying our teacher show us the experiment I thought the rocknroll Test would actually be cool to do but I didnt want to make my mind up just as yet so I tried all of them out. I predict that once you go deck to the alcohols with the more carbon aloofnesss are more viscous. mechanism employ * Alcohols * Ethanol (2), * Propanol (3), * Butanol (4), * Pentanol (5), * Hexanol (6), * Heptanol (7), * Octanol (8), * Dectanol (10)) For angle Test * sinlessness roofing roofing tile * Clamp Stand * Pipette * Gloves * Stopwatch * China interpret Pencil For rubbish Tubing * Clamp Stand * Blue switch over Air Bubble * Stopwatch * Gloves * Clamp Stand For Ball target * Ball * Test Tube * Bung * Test Tube deform * Stopwatch * Gloves Method Ball bearing 1. Hold the bung with your sky and turn it. 2. Quickly time the time taken for the ball to bread and butter up. 3. Write down the time taken. Tile Test 1. Mark the tile from the top horizontally aforesaid(prenominal) for the bottom. 2. corroborate the alcohol and put a drop at the top earlier the black line so you can measure it easily. 3. measure the time taken for the liquid to flow down at your finish line. 4. Then pen down the time taken. . Wipe off the liquid and start once more from No. 2. Glass Tubing 1. Turn the tube upright by holding the clamp not the tube. 2. Time t he time taken for the bubble to move up 3. Write down the time taken. Fair test and Safety Results Tilt Test Chemical Time Taken (1)(Seconds) Time Taken (2)(Seconds) Time Taken (3)(Seconds) Mean(Seconds) Ethanol (2) 20. 16 20. 28 20. 16 20. 20 Propanol 2-ol (3) 30. 00 12. 52 28. 79 23. 77 Butanol (4) 10. 5 19. 42 15. 94 15. 30 Heptanol (7) 18. 52 15. 72 20. 12 18. 12 Octanol (8) 31. 03 12. 9 19. 52 21. 08 Glass Tubing Chemical Time Taken (Seconds) Ethanol (2) 20 seconds Butanol (4) 28 seconds Hexanol (6) 48 seconds Pentanol (5) 39 seconds Octanol (8) 54 seconds Ball strength For ball bearing it was really hard to time the amount of time it took to fall as it was really unwavering. So we could write down our results quick enough. Conclusion We chose to do ball bearing as it was really fast and we hardly had any time to time it also because thought it was an dirty test as we couldnt time it plausibly and we could get it wrong.We chose not to do glass tubing because it was hard tur ning the clamp survive around plus it was really slow and took long to time. We chose to do fee test as it seemed the fairest test out of the 3. overly we could change a few things so it would be fairer, like mark a rank on the pipette so we get the identical amount of alcohol on the tile etc. and wipe of the liquid later. Plus it would be good for a group of 3 as there are 3 jobs that we could do like putting the alcohol on the tile, clock the time taken for it to go pass the finish line also to note down the time taken and draw the table.Real Experiment Aim Prediction Apparatus used and Justification * Alcohols * Ethanol (2), * Propanol (3), * Butanol (4), * Pentanol (5), * Hexanol (6), * Heptanol (7), * Octanol (8), * Dectanol (10) * White tile We used this as it would be clearer to see than a black tile. * Clamp Stand To keep the tile in the similar position to keep it a fair test. * Pipette to keep the measurements of the alcohol on the tile. * Gloves To not get any of the liquid on our hands and also because of the safety. Stopwatch To time the aloofness of the time taken for the liquid to travel down the tile and it seems fair as we arent doing it in our heads because we could count slowly or faster than an actual second. * China interpret Pencil It is easier to see and to stop the pencil from dissolving as the attach did this. Method 1. Mark the tile from the top horizontally same for the bottom. 2. Get the alcohol and put a drop at the top before the black line so you can measure it easily. 3. Time the time taken for the liquid to flow down at your finish line. 4.Then write down the time taken. 5. Wipe off the liquid and start again from No. 2. Fair test and Safety Results Conclusion We marked the pipette so we got the same amount of solution each time to keep it a fair test. We kept the tile at the same flower we changed the types of alcohols. We thought it wouldnt be fair if we left the alcohol on the tile so we wiped it off after every alcohol we used even if we had to use the same alcohol we still wiped it as it would be unfair because that alcohol wouldve had more liquid so it could make it faster or even slower.We also kept the maker at the same starting and ending point. We had 3 people in our group, so we did the experiment 3 times so it was fair as we would be ever-changing around what everyone did for instance, putting the liquid on the tile, timing th length it take =s for the alcohol to come down and also penning the time taken down. It was goo as if someone did it wrong we wouldnt done it again but with a different person doing something different. paygrade We were all safe as we used gloves so the alcohol didnt touch our fingers. We tied our hair back so it wasnt flying around everywhere.We put our chairs under the table so no one got hurt and we had more room. We made sure the clamp stand was in the middle of the table so it doesnt fall on anyones foot. We also made sure that the tile wasnt lo ose so it wouldnt fall. Id say we were 99. 9% safe The tile wouldnt stay on so it was at different length but one of us held it steady as one of the sides were up and the other was on the table. We measured it every time we used a different alcohol so it was at the same height each time. Next time we could just put it steady on one angle then measure it instead of doing it the other way.I guess my results are about right as my range bars ion my graph are preferably close together, some more than others. So they are quite straight. I think there are two outliers which are Propan 2-ol (2nd Try) and Octanol (1st Try). It was probably a silly mistake that we did, or it couldve been the temperature of the room. We all did try the experiment and we did different things such as timing the amount taken for the alcohol to go down, getting the liquid in the pipette and putting it down on the tile and also noting down the time taken.One of us couldve clock it before or after the alcohol was put on the tile, every that or the amount was too much or too less. Also some of them did evaporate when it nearly got to the end. I think from a dental plate from 1-10 my results would be a 6 with 10 being the most accurate and 1 being inaccurate. Next time I could measure the temperature and go into a room with no windows and nothing thats going to consider the temperature so its always the same temperature. I could use the same pipette each time. References 1. http//www. rinceton. edu/gasdyn/Research/T-C_Research_Folder/Viscosity_def. html (date accessed 20th butt 2013 1525) 2. http//physics. info/viscosity/ (date accessed 20th March 2013 1533) 3. http//chem4652011. webs. com/chem465-2. gif (date accessed 20th March 2013 1544) 4. http//upload. wikimedia. org/wikipedia/commons/thumb/b/b8/Propanol_flat_structure. png/640px-Propanol_flat_structure. png (date accessed 20th March 2013 1541) 5. http//upload. wikimedia. org/wikipedia/commons/4/4b/Butanol_flat_structure. png