viscosity experiment lab report conclusion

It is a measure of a fluid's resistance to flow. Report 1. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) Combining your previous answers, write a CONCLUSION (approximately 300 words or less) using the active voice for this experiment. Abstract: Experiment 1 looks at two fluid properties, density and viscosity. - 1 Stopwatch/Video Recorder Content may be subject to copyright. To learn more, view ourPrivacy Policy. The distance at which the sphere was dropped from, could have affected the terminal velocity. Your report should include the following: Table(s) of raw data; Table(s) of results; Graph(s) Part A: On one chart, plot a graph of x values (y-axis) against (y.h) 1/2 values (x-axis) for each test. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) Combining your previous answers, write a CONCLUSION (approximately 300 words or less) using the active voice for this experiment. Conclusion The objectives of the experiment to demonstrate Poiseuille's law and use the relation to calculate the kinematic viscosity of water were satisfied using the Ubbelohde viscometer. Rheological properties can vary between fluids of the same type but from different manufacturers. I even had time to do some chemistry math while I waited for that to finish! (2) An ammet Using the measurements and 794 %. Get your timer ready. Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or tensile stress. Introduction and Theory. us a better estimate of the viscosity. Have you ever experienced the frustration of trying to get ketchup out of the bottle? Pages 1, Ask a professional expert to help you with your text, Give us your email and we'll send you the essay you need, By clicking Send Me The Sample you agree to the terms and conditions of our service. Academia.edu no longer supports Internet Explorer. Report. 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Widely, it is used for measuring the viscosity of Newtonian fluids. acting on the sphere but the sum of all the forces will be zero. the Motor oil. Microscope Lab Report Conclusion Questions: . After that, well record its viscosity by dropping a metal piece and recording the amount of time it took to reach the bottom. 0 NSA/AMA respectively. When a molecule from a slower moving layer moves up in to a faster If you notice, velocity is on one side of the equation and viscosity is on the bottom side of the other. Each fluid was placed in a cylindrical container. Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, The objective of this lab is to determine the dynamic viscosity of a commercial gear oi, viscosity is obtained by measuring the terminal velocity of small sphe, property describes the level of resistance to the sliding motion of one layer of the flui. are off by 2. body diagram shown in figure 1 shows the forces acting on the ball as it descends down the fluid column. The ice has less friction, so the box will slide further. From the pressure diagrams, it was concluded that there was a high-pressure gradient at the leading edge and decreased through the aerofoil. The viscosity of the liquid is represented by the symbol eta. The true density of water is 1000 kg/m3 . . The viscosity of a liquid can be measured using a viscometer. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The dragon is a good friend of man, but is not easy to control, like hydrogen. through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. The density of the ball bearings were calculated with the following formulas HypothesisMy hypothesis is that when the temperature goes up, the viscosity goes down, and when the temperature goes down, the viscosity goes up. Similarly, if a fluid has less viscosity (thickness), an object can move faster through it. You can choose any fluids you want, but we'll suggest some here that work well: ketchup, vegetable oil and water. Numerical investigations were conducted on the mixing efficiency of resonant acoustic mixing (RAM) technology using a high-viscosity mixture under vertically forced vibrations. 311 Comments Please sign inor registerto post comments. Drop 2 218 0. Author content. University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? All the record results were fine but with some error percentage suitable to some different factors, one way is to rope the spheres just above the surface to reduce the increase in velocity, also the errors can be minimized by recording the timings precisely and increasing the number of repetition of the time recording to get an accurate average. Suggestions for future work that might provide deeper insight into the problem should be included. Drop 2 44 1. Method1. The answer is a property of liquids called viscosity. All rights reserved. We will include tips on formatting and structure, as well as how to effectively communicate your findings. You're trying desperately to shake it, but to no avail. Drop 1 43 1. Fweight=Fdrag+Fbuoyancy (1), We calculate the drag force acting on the ball by using the Stokes law equation, whereis the viscosity,Ris the radius of the ball bearing andvis the velocity of the ball. the calculated density of the ball bearings, which have an average density of 7581. This is why it is perfectly acceptable to reject the hypothesis. 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. Medium Temperature [C] 2. 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. However, further sensitivity improvement is required to achieve . P1 - Practices digital signal processing are practices p1,p2,p3. (4) A rheostat (10 ohm) Sphere Average Speed[m/s] Standard deviation Since we're just interested in how viscosity affects velocity of the sphere, let's look at how those two variables are related in the equation. enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiment's Goals. Drop 2 147 0. DOCX, PDF, TXT or read online from Scribd, 100% found this document useful (5 votes), 100% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful. Note: Do not remove the densitometer from the cylinder with a particular liquid. Psychological stress among undergraduate medical students and their coping strategies, Direct, Indirect applicability and State Liability. Nguyen Quoc Trung. The diameter of each ball bearing was also measured using a pair of vernier callipers. Ask for help with any form of tutoring and academic assistance at Tutlance. Then slow it down to count the seconds it took for the marble to fall. - 3 Cylindrical Containers with the same size containing: Glycerin, Motor Oil and Castor Oil Controlled Variables: Amount of liquid, mass of the object. Drop 2 135 0. In our case, to determine the viscosity of the different fluids, first we need to assume that the flow is laminate PhotoGreen Lab, Department of Chemistry, University of Pavia, V. Le Taramelli 12, 27100 Pavia, Italy . and the procedure is described in Section4. Viscosity is one of the properties to describe the " fluidity " of fluid. If you want to drain a $480 \mathrm{mL}$ shake in 2.0 minutes, what pressure difference is needed? Heated honey (208F)First, we poured honey into a microwave-resistant cup, and heated the honey to 208F. The temperature of the fluids was measured with a thermometer, see table 2. Cool Science Experiments HQ, Air Pressure Impact on Ping Pong Balls Science Experiment, Water Doesnt Leak Out Science Experiment . In a lab flow test using Athabasca tar sand and propane as solvent, 50 percent of the bitumen was recovered as upgraded oil. Content uploaded by Bilal Ahmad. Data measured and somewhat optimistic one. This will help to ensure that readers understand how the data was collected and can evaluate its reliability. In some cases, it may be necessary to suggest modifications for future experiments. Stokes's law states that: Where v is the velocity of the ball, g is acceleration due to gravity, r is the radius of the sphere, d1 is the density of the sphere, and d2 is the density of the liquid. Experiment Biological Diversity [k6nqwo3ve1nw] 2022-10-13 . Lab Report regarding viscosity experiment. Having deter- We completed the Viscosity Experiment in class on March 18th. Re =viscous forcesinertial forces =u 0 L (10) Go Premium and unlock all 10 pages Access to all documents Get Unlimited Downloads Improve your grades Upload Share your documents to unlock Free Trial Get 30 days of free Premium Already Premium? Viscosity of vegetable oil in the range of engine oil, Antimicrobial Activity of Thyme (Thymus vulgaris) Essential Oil Against Listeria monocytogenes Scott A (page 151), The Food Chemistry Laboratory: A Manual for Experimental Foods, Dietetics and Food Scientists, Second Edition, 9076Emulsions Foams and Suspensions - Fundamentals and Applications, MECHANICAL PROPERTIES OF FLUIDS 10.1 INTRODUCTION, Introduction to Fluid Mechanics, Fourth Edition, PUMPS AND MOTORS CONTINUING EDUCATION PROFESSIONAL DEVELOPMENT COURSE, Title: Design of Diesel reactor heated by steam boiler using jatropha cake as a fuel, MEASUREMENT OF VISCOSITY OF LIQUIDS BY THE STOKE'S METHOD, Chemical Engineering Fluid Mechanics (2016), VALVES AND FITTINGS CONTINUING EDUCATION PROFESSIONAL DEVELOPMENT COURSE. Lets get started! 4 clear glass jars of the same size (we used pint-sized mason jars). Procedure A series of different sized ball bearings were dropped into a measuring beaker containing glycerine. the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance Viscosity is a measure of resistance to flow of fluid at a specified temperature. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? Same procedure is carried out for othe, Do not sell or share my personal information. Large 8 1 7258. Finally, the conclusion should offer some suggestions for further research. Practical investigation into Viscosity in liquids (Stokes Law). Experts are tested by Chegg as specialists in their subject area. Include and Analyze Final Data. Large 1 0. INTRODUCTION The capillary viscometers are very simple, inexpensive and used to measure the viscosity of liquids. Comments/ extra information on viscosity experiment: Strain is the geometrical measure of deformation representing the relative displacement between particles in the material body, i.e. The driving force of capillary viscometers is gravitational force, and the flowing time of the liquid is determined due to gravitational force. Become Premium to read the whole document. The density distribution was analyzed for a mixture of high-melting explosive (HMX) and trinitrotoluene (TNT). The first step is to restate the goals of the experiment. Higher the viscosity of liquid bitumen, the more nearly it approaches a semi-solid state in consistency. Ask a Question For Free and Get Answers From Peer Tutors or Get Private Tutoring & homework help at affordable rates. 2401 secandtis the average fall time in frames for each bearing size. 2. Why do different fluids move at different rates? What steps did you take to conduct your experiment? The apple juice had also higher density than the water itself. Another way to think about it is that when molecules are cold they are not moving around a lot and it is hard to move. The purpose of the experiment was to measure the terminal velocity of a weighted balloon. The experiment records and activities consist of 6 marks, the project has 3 marks and viva on the experiment consist of 5 marks. Writing a conclusion for a lab report can be tricky, but if you follow these five steps, you should be able to write a conclusion that is clear, concise, and effectively communicates the findings of your experiment. , er (0 - 1.5A) Introduction: Viscosity is a property of liquids that measures a fluid's resistance to flow. GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. a measure of how much a given displacement differs locally from a rigid-body displacement. Motor oil 30. Regardless, the results for the fluids viscosity are consistently above the Drop 3 133 0. - Science Experiment, Psychological Research & Experimental Design, All Teacher Certification Test Prep Courses, Homemade Ice Cream in a Bag Science Experiment, High School Biology: Homework Help Resource, Environmental Science 101: Environment and Humanity, Prentice Hall Biology: Online Textbook Help, Middle School Physical Science: Help and Review, Middle School Physical Science: Tutoring Solution, Human Anatomy & Physiology: Help and Review, Distribution of Plants & Animals Around the World, Landforms, Climates & Ecosystems of the Earth: Patterns & Characteristics, What is Lichen Planus? LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) - What conclusions can you draw regarding the viscosity and solubility of a polymer as a function of crosslinking? Ch09 - Chapter 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J. A graph of the experimental friction factor was compared . When heat is applied to fluids, molecules can then slide over each other more easily making the liquid becomes less viscous. On the second graph, plot the K values for the fittings (y-axis . Drop 2 42 1. 0. Glycerin 110% The R = ..ohm, Which of the following forces are dissipative in nature. Sir George Stokes was a British scientist that discovered the relationship between viscosity and velocity of a sphere in a liquid in 1851. Castor oil 1. You can also try other liquids. 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. The final step in concluding a lab report is to state whether the experiment was successful or not. LAB REPORT HYDRAULIC POLITEKNIK : SEMESTER 4 : PROPERTIES OF FLUID. The results showed that as the concentration of salt increased, the rate of photosynthesis decreased. Low viscosity fluids flow easily (water, alcohol); High viscosity fluids pour slowly (molasses, cold honey, etc.). Castor Oil 22. Discuss discrepancies and anomalies in your data. references values. shown in the equation below There are several methods that can be applied to measure the viscosity of a liquid, two of which are practiced in this experiment. Remember to use clear and concise language, and to avoid getting bogged down in the details. She has a Master's Degree in Cellular and Molecular Physiology from Tufts Medical School and a Master's of Teaching from Simmons College. - 1 Thermometer This means that when the temperature goes up, viscosity goes down, and when the temperature goes up, viscosity goes down. Drop 3 220 0. - 1 Scale (1 decimal) error in our results. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What is the real-world implications from this experiment? Conclusion. The result of adding more cross-linking agents to a polyme. Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, L.N.Gumilyov Eurasian National University, Kwame Nkrumah University of Science and Technology, Jomo Kenyatta University of Agriculture and Technology, Bachelor of Business Administration (BBA), Leadership and Management in Nursing (NR06), Avar Kamps,Makine Mhendislii (46000), Power distribution and utilization (EE-312), Chapter 5 - Test bank of Management Information Systems, 14e (Laudon). It took 5m, 36.51s (336.51 s) to fall to the bottom! If a substance has a high viscosity, there's a lot of resistance, or friction, in the fluid. 2 g/cm3 to 20 g/cm3. Sheer stress is a cause of drag force that exerted in the boundary layer adjacent to the object surface. The conclusion should include a discussion of the implications of the data, as well as any errors that were made during the experiment. Because Viscosity changes with temperature and . Your email address will not be published. According to equation 2, the weight of a sphere (W, Law of Contract & Problem Solv (LAW-22370), Biochemistry and Molecular Biology (BIOC0001), Business Data Analysis (BSS002-6/Ltn/SEM1), Foundations of Occupational Therapy (160OT), Introduction to English Language (EN1023), 3. Repeat step 2 for the remaining liquids. 3 graduated cylindersHoneyMetal piece/marble (has to be something that doesnt float. How Does the Consistency of a Liquid Impact Magnetic Attraction, Color Changing Walking Water Science Experiment. The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the experiment. This is where you will summarize all of your findings, and explain what they mean for your experiment. Sorry, preview is currently unavailable. . =mV (5), Wheremis the mass andVis the volume of the ball bearings. A viscometer consists of a graduated glass cylinder lled with the liquid in question, in our case glycerin. Retrieved from https://paperap.com/paper-on-viscosity-lab-report/. An adult had to help with the stove/ heating. 1. Viscosity is a measure of the resistance of a fluid which is being deformed by ei- ther shear stress or tensile stress. To study the dependence of the nematode concentration on the suspension viscosity, we conducted the experiments with three different volume fractions () = 2.26%, 4.52%, and 9.04% keeping all the other parameters constant as shown in Fig. Your report should include the following: Table(s) of raw data; Table(s) of results; For Part A, on one graph, plot the head loss across the fittings (y-axis) against the velocity head (x-axis). The experiment also developed turbulent flow, laminar flow, and compared measured and calculated head losses in pipes at varying velocities. A lab report conveys the aim, methods, results, and conclusions of a scientific experiment. 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. Our body senses molecules jumping around a lot as heat. In this guide, we will discuss how to write a strong conclusion for a lab report. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. This site is using cookies under cookie policy . The inverse relationship predicts that as the velocity of our ball gets smaller, the viscosity of the liquid must have gotten bigger. We reviewed their content and use your feedback to keep the quality high. different diameter, different density of oil and stop watch. For example, honey is more viscous than water. Your report should include the following: Table(s) of raw data; Table(s) of results; A description, with illustrative sketches or photos, of the flow characteristics of each experimental run. REQUIREMENTS: Lab Report regarding viscosity experiment. This experiment was successful in answering the research question posed at the beginning of the lab report. Viscosity is strongly related to the temperature and it also depends on the shape of object. Start by filling each glass with one of the liquids. 5 g/ml to 3-4 g/ml. Extracts from this document. 4 clear glass jars of the same size (we used pint sized mason jars). Large 0 0. Drop Frames 240 /s Velocity[m/s] A moody diagram was plotted comparing the friction factor versus the Reynolds number. but to report on the actual results. 10. 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. water, rubbing alcohol, and vegetable oil). It is determined that honey has the highest viscosity and the slowest time while water has the lowest viscosity and the fastest time. Use the template provided to prepare your lab report for this experiment. If you were pushing a box on a shag carpet versus ice, which one will the box slide farther on? Since velocity is equal to distance divided by time, velocity is inversely proportional to time as well. The time taken to travel between two marks on the beaker was recorded. Viscosity is a measurement of a fluid's resistance to change or deformation, or more simply put, how thick it is. The pressure drop across the pipes was recorded to find both the friction factors and Reynolds numbers. bearing size fall time nine times instead of three different bearing sizes, three different times would have given The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . I feel like its a lifeline. Filtration time was 1.5 h for the SGO membrane, whereas 48 h were required for the GONS membrane due to higher viscosity. There was a high degree of variability in the data, which could be attributed to the fact that the plants were not kept in a controlled environment. Drop 3 42 1. How much did you enjoy doing the experiment? Topic: The effect of salt concentration on the rate of photosynthesis. 3. Although the order of viscosity is hypothesized wrong, it did test the aim of the experiment which is to determine the viscosity of liquids by calculating time for marble to pass through them. Compare your results of the measurement of the viscosity with the accepted values. Obviously the syrup will flow slower than the water in LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) - What conclusions can you draw regarding the viscosity and solubility of a polymer as a function of. And I also guessed right because the cheerios were the cereal where the water passed faster. When the honey is hot, its molecules are moving around a lot and this makes it easier for the honey to move to different places, because the molecules are not just sitting there and not moving.

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