Viscosity Science Lab Purpose: To determine of changing the viscosity will affect the time it takes for a marble to flow through a liquid. Hypothesis: If a marble is dropped into dish soap and corn syrup‚ than I predict that the marble in the dish soap will travel faster than the marble in the corn syrup because I know that the viscosity of the corn syrup is thicker than then the viscosity of the dish soap. Also‚ the particles in the corn syrup are more compact than those in the dish soap
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was able to dissolve increased with the mass of the solute. This can be explained by the fact that increased temperature means a grater average velocity of the particles‚ which helps them to change their state more easily‚ in this case from solid to liquid. Evaluation There are several things we could have done better in our experiment to obtain more accurate results. One of the potential errors was the part of our experiment during which we looked for the first signs of crystallization because
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Magnetostrictive materials: the behaviour of magnetostrictive materials is analogous to that of the piezoelectric ceramic materials‚ except that they are responsive to magnetic fields. Electrorheological and magnetorheological fluids are liquids that experience dramatic changes in viscosity upon the application of electric and magnetic fields‚ respectively. The combined system of sensor‚ actuator and control circuit on as one IC unit‚ emulates a biological system. Brain Muscles Actuators
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Background The melting point of a compound is the temperature at which the solid is in equilibrium with its liquid. A solid compounds changes to a liquid when the molecules acquire enough energy to overcome the forces holding them together. A mixture melting point is useful in confirming and used to indentify an unknown compound‚ which we will be doing in this particular experiment. Purpose Measure the melting points of pure benzoic acid and pure mandelic acid. Determine the eutectic composition
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ultrasonic power to break up medical solutions and suspensions into small aerosol droplets that are inhaled directly into the airways when you breathe in. This means a much smaller dose is needed than if you were to take the medicine as a tablet or liquid by mouth as just the airways and lungs are treated but little of it goes to other parts of the body. Non-Invasive Ventilation (NIV) – a cushioned mask fitted over the nose alone or both mouth and nose which in attached to an air pump machine. NIV
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is a change of state. As you know‚ matter exists in three states (or maybe four‚ the fourth being a plasma)‚ solid‚ liquid and gaseous. At different temperatures‚ the same substance may be in different states. Each state is characterized by the way the interatomic forces act. In solids‚ the atoms (or molecules) are held firmly together in a closely packed crystal structure. In liquids‚ the crystal has fallen apart rendering the substance shapeless. Nevertheless a liquidhas certain coherence‚ being
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To provide heat to dry products Why is it necessary to atomise fuel? Even though fuel oil is classified as a flammable liquid‚ most fuels will not burn easily in a liquid state. If you were to drop a lit match in a container of fuel oil‚ it would PROBABLY go out almost immediately (don’t try this!). In order for fuel oil to burn‚ it must first be transformed from a liquid to a vaporised state ~ atomised. Atomisation increases the exposure of the fuel to the oxygen in the air; this promotes combustion
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QTC™ Material can be made to withstand extreme temperatures limits. * Used for switches and keyboards. Thermochromic Ink * These materials change colour when there is a change in temperature. * Thermochromic ink comes in two forms: Liquid crystals and Leuco dyes. * Leuco dyes are easier to work with and allow for a greater range of applications. * Applications of thermochromic ink include: flat thermometers‚ battery testers‚ clothing. Mr
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place it in the proper holder under the hood. Discussion: Melting point is an example of a physical property. This is lieu of the fact that we are observing a sample without changing the composition of the matter. As there are 3 states (solid‚ liquid and gas)‚ the same matter remains intact in all three states. We use melting point measuring in organic chemistry as this is a method to identify a pure solid compound and compare it to the melting points listed in various sources of published data
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1. Label heating curve graph of a substance other than water (NOT WATER‚ make up a substance if you have to‚ but don’t use 0 oC and 100 oC The graph must include: • An illustration (not fancy) of how the molecules are arranged in the solid phase‚ liquid phase‚ gas phase and during the phase changes. • How KE and PE change during different parts of the graph. • Labels for each part of the graph with an appropriate equation. • Labels for the melting point and boiling point. The information may
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