Viscosity By Mike Bruder and Carey Hammel

Required Project Our required project was to make our own viscometer. We used a large graduated cylinder and a stopper attached to a wire to achieve this. To use this, fill the cylinder with you liquid and measure the time it takes for the stopper to reach the bottom of the cylinder.

Problem How does the viscosity of water change as methyl alcohol is added to it, at different percentages?

Hypothesis We thought that the viscosity would get larger as more methyl alcohol was added. We think this because the viscosity of methyl alcohol is higher than the viscosity of pure water.

Experiment We started testing the viscosity of the mixtures. We made our mixtures by adding Xml of water and Xml of methyl alcohol, until it added to 100ml.

Experiment

Results 20 degree F Water = % Water 10% Methyl Alcohol = % Water 20% Methyl Alcohol = % Water 30% Methyl Alcohol = % Water 40% Methyl Alcohol = % Water 50% Methyl Alcohol = % Water 60% Methyl Alcohol = Methyl Alcohol =.95607

Results Graph of different viscosities.

Conclusion Our conclusion is that the viscosity would rise to a high point at then would again lower itself. We can’t be sure because we didn’t finish and some of our results may have been faulty.