Viscocity of Alkanes Essay examples -- Papers

Viscocity of Alkanes Introduction When dealing with fluid/mechanical systems, it is important to know what affects the rate of descent of an object through a liquid. There are many factors that affect the descent of an object through a liquid such as: 1) Temperature of the liquid 2) Mass* of object 3) Size/surface area of object 4 Viscosity of liquid 5) Angle of descent Temperature I would like to investigate the correlation between temperature and time of descent. Reading suggests that the colder the liquid the longer it will take for the object to reach the bottom. Mass*& Surface area/size Gravity accelerates at 9.81 ms-1 independent of mass. Hence increasing the mass will not affect the experiment of surface area. Thus using an object of various sizes it would be possible to investigate the proportionately of size on the descent of the object. Viscosity I feel it is important to investigate the affects of how a more viscous liquid would impede the progress of an object descending through a liquid. Therefore I have included this factor into my investigation. Angle of descent I would like to observe the affects of the object descending at an angle. Such at sediment in a bottle is there a way in which bottles should be stored that may hasten descent? Aim To investigate the rate of decent of an object falling through a liquid (simulated by a ball bearing) and investigate some of the factors that will affect this. Summary I have completed this investigation by using many simple experiments to reach a firm conclusion on the rate of decent of a ball beari... ...ment 2 this was also 40-60. Therefore I would be able to conclude with a third liquid that it may be possible that the liquid does not effect the point in which a ball bearing reaches its terminal velocity. However I can conclude that the size of the ball bearing and also the mass does not effect where it reaches its terminal velocity. As you already know, if two objects of the same size but with different masses are dropped from the same height they will descend and hit the ground at the same time. It is only air resistance that will affect the descent if the objects size is slightly different. I can relate this to my experiments in finding the terminal velocity of the ball bearings through the liquid, and therefore explain why the occurance happened with only a slight varience with the very large ball bearings.