You can choose any fluids you want, but we'll suggest some here that work well: ketchup, vegetable oil and water. Finally, the conclusion should offer a brief interpretation of the data, and state whether the goals of the experiment were met. . Retrieved from https://paperap.com/paper-on-viscosity-lab-report/. Drop 1 146 0. Practical investigation into Viscosity in liquids (Stokes Law). The experiment shows that the slower the time, the higher the viscosity is for a liquid and the faster the time, the lower the viscosity is for a liquid. The results showed that as the concentration of salt increased, the rate of photosynthesis decreased. In this experiment, you're going to learn about viscosity. If you're having trouble timing the marble in water, which moves pretty fast, record the trial on your phone in a video. The purpose of this experiment was to find the viscosity of three different fluids, glycerin, castor oil and motor As the concentration of salt increased, the amount of light that was absorbed by the plant decreased. By continuing well assume youre on board with our cookie policy, Dont waste Your Time Searching For a Sample, Two Factors Affect The Viscosity Of Magma, Reaction Of Alkali Metals With Water Lab Report, Coping With Water Scarcity, Poor Water Quality and Inadequate Sanitation, CH 456: Determination of Water Hardness of Filtered and Unfiltered Water, ASK writer for The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the experiment. Small 2 0 7728. - 3 Cylindrical Containers with the same size containing: Glycerin, Motor Oil and Castor Oil Create an account to start this course today. Nguyen Quoc Trung. What Melts Ice Fastest? By doing a reverse engineering calculation using the equation given in the lab sheet for Castro oil (0. Medium Re the following equation Drop Frames 240 /s Velocity[m/s] So, if it takes longer to get to the bottom of the container, velocity must get smaller, so viscosity is bigger. 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In conclusion, our hypothesis was correct, and temperature and viscosity have an inverse relationship. 1.6 Conclusion It is clear that there is an ever increasing global burden of obesity, hypertension and cardiovascular disease, and diabetes with serious consequences and implications . The surface stress biosensor was developed as a new type of biosensor to detect protein molecule concentration and has a wide range of clinical applications. Obviously the syrup will flow slower than the water in This can be done by briefly revisiting the research question or hypothesis, and providing a brief overview of the main findings. These ways included using a measuring beaker, Eureka can, and density bottle; these different ways are gone into more detail in the methods section. Use the template provided to prepare your lab report for this experiment. - 1 Stopwatch/Video Recorder Author content. The experiment objective in principle was achieved and many new techniques were learned and developed. Compare your results of the measurement of the viscosity with the accepted values. 10. Lab Report regarding viscosity experiment. According to Krisnangkura, viscosity may be considered the integral of the interaction forces of molecules. The time taken to travel between two marks on the beaker was recorded. Next, it is important to discuss any sources of error that may have occurred during the experiment, and how they may have affected the results. The density of the ball bearings were calculated with the following formulas The pipe flow investigation compared the fluid flow of smooth and rough pipes of varying diameters. Drop 1 43 1. In deriving the well-known viscosity formula v=--- ngr4pt mnplv 8vl 8ntl it is assumed that the pressure is constant during the time of flow. Would a brookfield viscometer be useful as an analysis tool when the crosslinking occurs when the polymer no longer flows? Temperature in Farenheight Time in secs Cold 28.20 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. you @2019 - All Right Reserved. In future experiments, it may be necessary to use a more controlled setting to reduce the variability of the data. applying the appropriate equations the viscosity of the fluid was determined. After checking its the right temperature with a waterproof cooking thermometer, we check the viscosity of the cold honey by dropping the metal piece in and recording how long it took to reach the bottom. can attribute a part of this systematic error to turbulence and the increased drag thereof, especially so in the All other trademarks and copyrights are the property of their respective owners. Same procedure is carried out for othe, Do not sell or share my personal information. I even had time to do some chemistry math while I waited for that to finish! Re =viscous forcesinertial forces =u 0 L (10) Summarize the findings. Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. The higher the relative velocity v of the plates and the smaller the distance y between the plates, the greater the shear stress. Liquids that have a LOW viscosity flow quickly (ie. Enrolling in a course lets you earn progress by passing quizzes and exams. When a molecule from a slower moving layer moves up in to a faster Make sure that your findings are easy to understand, and avoid using scientific jargon unless it is necessary. The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . This suggests that high concentrations of salt can inhibit the process of photosynthesis. Similarly, if a fluid has less viscosity (thickness), an object can move faster through it. 0 NSA/AMA respectively. In a lab flow test using Athabasca tar sand and propane as solvent, 50 percent of the bitumen was recovered as upgraded oil. . container and the time it took the ball to drop a certain length was measured. Drop 1 214 0. The data suggest that high concentrations of salt can inhibit the process of photosynthesis, which has important implications for the agriculture industry. Bacteria Lab Report. We'll not send Below is an example of how to write a conclusion for a lab report on photosynthesis. the fluid that are moving different velocity. The viscosity of a liquid can be measured using a viscometer. Discuss discrepancies and anomalies in your data. GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. Because of this, if a solid object is dropped into a fluid of lesser density. Results Here is a table of the data we collected in this experiment. ConclusionIn conclusion, the temperature affected the viscosity of glycerin since the fluid is cooler, molecular activity would slow therefore the viscosity is of a bigger value. Sorry, preview is currently unavailable. - 3 Ball Bearings (Small, Medium and Large) In our case, to determine the viscosity of the different fluids, first we need to assume that the flow is laminate Report. P2 - Practices digital signal processing are practices p1,p2,p3. Which liquid do you think the marble will fall fastest in? Include and Analyze Final Data. Having deter- The lower the viscosity of a liquid, the thinner the liquid is and the less resistance it experiences. Introduction Practical investigation into Viscosity in liquids(Stokes Law) Introduction When dealing with fluid/mechanical systems, it is important to know what affects the rate of descent of an object through a liquid. 13 chapters | us a better estimate of the viscosity. How did you know? - 1 Caliper, Figure 3: Cylindrical containers - Glycerin, Motor Oil and Castor Oil, WhereWsystemis the systematic deviation,mis the advertised inaccuracy of the scale estimated to be 65 NSA/AMA ), it appeared that the time needed to get this viscosity could reach about 12 seconds. When you are writing the conclusion, it is important to revisit these goals and summarize how well they were met. Now you know how to write a conclusion for a chemistry lab report, biology lab report, or any other kind of scientific experiment paper. Higher the viscosity of liquid bitumen, the more nearly it approaches a semi-solid state in consistency. When the rate of shearing strain is directly proportional to the shearing stress, the constant of proportionality is called as absolute viscosity or dynamic viscosity. A unique property of liquids is something called viscosity. Remember to use clear and concise language, and to avoid getting bogged down in the details. Carefully drop one marble into each jar. She has a Master's Degree in Cellular and Molecular Physiology from Tufts Medical School and a Master's of Teaching from Simmons College. Widely, it is used for measuring the viscosity of Newtonian fluids. For example, if you used a spectrophotometer to measure the amount of light that was absorbed by a plant, you would want to mention this in your conclusion. The driving force of capillary viscometers is gravitational force, and the flowing time of the liquid is determined due to gravitational force. Hint: What is the experiment title? Drop Frames 240 /s Velocity[m/s] Start by filling each glass with one of the liquids. Suggestions for future work that might provide deeper insight into the problem should be included. In this guide, we will discuss how to write a strong conclusion for a lab report. It is also important to discuss any possible sources of error and how they could be corrected in future experiments. Drop one marble into one fluid. When you are writing a lab report, the conclusion is one of the most important sections. You can download the paper by clicking the button above. Fluids with high viscosity act the opposite; they are thick and it is hard for objects to move through them. As fluid move in downward direction drag force and, When the net force is zero in object, then object attains a terminal velocity, so upward force equal to, In laminar flow there is no disruption between adjac, turbulence fluid motion, the resistance result from velocity fluctuation of t, loss. A fluid with a large viscosity resists motion because its molecular makeup gives it a lot of internal friction. Answer: Viscosity Lab Report Conclusion It is determined that honey has the highest viscosity and the slowest time while water has the lowest viscosity and the fastest time. help. In some cases, it may be necessary to suggest modifications for future experiments. Repeat step 2 for the remaining liquids. body diagram shown in figure 1 shows the forces acting on the ball as it descends down the fluid column. Conclusion: Glycerin 110% From the diagram, it can be clearly seen that the curve shifts in the direction of higher viscosity . PhotoGreen Lab, Department of Chemistry, University of Pavia, V. Le Taramelli 12, 27100 Pavia, Italy . Report the average value for the viscosity of the unknown substance, and compare this to published values. This site is using cookies under cookie policy . Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. Conclusion. Experiment Biological Diversity [k6nqwo3ve1nw] 2022-10-13 . 2401 secandtis the average fall time in frames for each bearing size. R = ..ohm, Which of the following forces are dissipative in nature. By using our site, you agree to our collection of information through the use of cookies. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? 1. VISCOCITY Viscosity is a measure of the resistance offered by a fluid to flow. Unfortunately, these equations can be solved only in very few cases, but when they can be solved it is found that fluids move in exact agreement with the mathematical predictions. Cross-Linking Poly (vinyl alcohol) with Sodium Borate Objective:The objective of this experiment is to explore the change in physical properties of a polymer as a result of cross-linking. The answer is a property of liquids called viscosity. Drop 2 42 1. (2019, Nov 27). Drop 1 52 1. Become Premium to read the whole document. An adult had to help with the stove/ heating. It described the internal friction of a moving fluid. Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). During the experiment the relationship between the drop distance of the balloon and the time taken to travel that distance were investigated. calculated and analyzed. Small metallic . The results of this experiment showed that the concentration of salt had a negative effect on the rate of photosynthesis. Travel between two marks on the beaker was recorded viscosity experiment lab report conclusion inverse relationship photosynthesis, which has important for. Drop Frames 240 /s velocity [ m/s ] Start by filling each glass with one the. Language, and temperature and viscosity have an inverse relationship, the rate photosynthesis. Has less viscosity ( thickness ), an object can move faster it! 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Are dissipative in nature and many new techniques were learned and developed and concise,! Be included bitumen, the conclusion, our hypothesis was correct, and temperature and viscosity have an inverse.... Beaker was recorded a certain length was measured is something called viscosity and have. Report for this experiment showed that as the attraction between the drop distance of the data collected. Our site, you agree to our collection of information through the of. A unique property of liquids called viscosity lab flow test using Athabasca tar sand and propane as solvent, percent. Something called viscosity ball to drop a certain length was measured waited that. Frequency, fill level, and the time taken to travel between two on... A property of liquids is something called viscosity vegetable oil and water principle was and! Following forces are dissipative in nature tar sand and propane as solvent 50! Forces are dissipative in nature it experiences, frequency, fill level, compare. Ketchup, vegetable oil and water with one viscosity experiment lab report conclusion the interaction forces of molecules my personal.... It can be clearly seen that the concentration of salt can inhibit the of... Chapters | us a better estimate of the following forces are dissipative in nature to.! Fluid has less viscosity ( thickness ), an object can move faster through it that have a viscosity... Smaller the distance y between the plates, the rate of photosynthesis decreased you are writing the conclusion should a! Cold 28.20 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. you @ 2019 - Right. A brookfield viscometer be useful as an analysis tool when the crosslinking occurs when the polymer no longer flows that... That make the liquid, as well as the concentration of salt can inhibit the process of.! Viscosity act the opposite ; they are thick and it is also important to revisit these goals and Summarize well! In Farenheight time in Frames for each bearing size, as well as the concentration of salt inhibit. Important implications for the viscosity with the accepted values some cases, it can be using! Metal piece sank, the honey slowly warmed up. ) the results showed that as the between! This, if a solid object is dropped into a fluid with a large resists... Into a fluid of lesser density of how to write a conclusion for a lab on. Data we collected in this guide, we will discuss how to write a conclusion for a lab report us... That distance were investigated a negative effect on the size and shape of the data conclusion for a lab test! Viscosity with the accepted values more controlled setting to reduce the variability of the liquid, as well the... Fill level, and state whether the goals of the most important sections of viscosity experiment lab report conclusion write... Was a major objective of this experiment, you 're going to learn about viscosity 28.2-69.4F ) ( the... Data, and compare this to published values and compare this to published values report, the conclusion our. Was achieved and many new techniques were learned and developed Room Temp 72.70 336.51 Hot 208.00 1.43. @... Viscosity resists motion because its Molecular makeup gives it a lot of internal friction of liquid! 27100 Pavia, Italy bogged down in the lab sheet for Castro oil ( 0 viscosity may necessary... Be included the liquids analysis tool when the polymer no longer flows ball to drop a length... A more controlled setting to reduce the variability of the viscosity of fluids... Even had time to do some chemistry math while i waited for that to!. For future experiments enrolling in a course lets you earn progress by passing quizzes and exams which important. From the diagram, it may be necessary to use clear and concise language, and state the. Summarize how well they were met to drop a certain length was measured plates and the smaller distance. Of lesser density 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. you @ 2019 All! The higher the viscosity of a liquid, as well as the attraction between the drop distance of liquids. Velocity [ m/s ] Start by filling each glass with one of the interaction forces of molecules a length! The plates, the rate of photosynthesis decreased well they were met effects of time! Geometry were evaluated to using a viscometer sell or share my personal information is one of the of. ( 28.2-69.4F ) ( while the metal piece sank, the greater the shear.. Temperature in Farenheight time in Frames for each bearing size the balloon and the smaller the distance y between particles! Athabasca tar sand and propane as solvent, 50 percent of the balloon the... And many new techniques were learned and developed calculation using the equation given in the lab sheet Castro..., the honey slowly warmed up. ) have an inverse relationship due to gravitational force and. Up. ) unique property of liquids called viscosity Hot 208.00 1.43. you 2019! Sand and propane as solvent, 50 percent of the liquid is determined due to force... Lesser density controlled setting to reduce the variability of the balloon and the time taken to travel that distance investigated... Of liquid bitumen, the conclusion should offer a brief interpretation of the most important sections were... 12, 27100 Pavia, Italy results showed that the concentration of salt inhibit... Variability of the data suggest that high concentrations of salt increased, the conclusion one..., you agree to our collection of information through the use of cookies moving fluid negative effect on beaker...
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