This project was designed to determine if the temperature of a liquid affects the viscosity of the liquid. My experiment shows that effect of temperature on a liquid's viscosity must be taken into account in the design calculations. My calculations of relative viscosity of liquids to water also showed significant changes with temperature.Īccurate measurements of viscosity are essential in engineering calculations and design of equipment that move liquids, such as pumps, pipes and valves. As the temperature of the liquid goes down, the viscosity of the liquid goes up. As the temperature of the liquid rises, my experiment showed that the viscosity of the liquid goes down. The viscosity of each liquid tested was found to be dependent on the temperature of the liquid. To make high-quality films, parameters such as withdrawal speed must be optimised. However, in order to achieve maximum control when coating a substrate, it is important to be aware of what can affect your results. Relative viscosity of other liquids to water was also calculated. Dip coating is a relatively straight-forward technique. The flow rates of each liquid at the three different temperatures were compared. Because viscosity is related to how a liquid flows, the volume of liquid that flowed through the viscometer in each test was divided by the average time in minutes to get a flow rate in liters per minute. The elapsed time for the liquid to flow out of the homemade viscometer was measured three times for each liquid at each temperature.
The five liquids were tested at three different temperatures (65, 40 and 95 degrees F). A homemade viscometer was made to measure the flow of five different liquids including water, canola oil, dishwashing liquid, corn syrup, and molasses. The purpose of this experiment was to determine if the temperature of a liquid affects the viscosity of the liquid. The objective: Viscosity is a property of a liquid and is defined as the resistance of a liquid to flow.
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