Use Partical Theroy to explain Flashcards
What determines the viscosity of a fluid?
The viscosity of a fluid is determined by how easily its particles can flow past each other.
What are the four main factors that influence viscosity?
The four main factors that affect viscosity are the temperature of the particles, the size of the particles, the cohesive forces between the particles, and the concentration of the substance in a mixture.
How does changing the temperature of a fluid affect its viscosity?
Changing the fluid’s temperature can either bring its particles closer together or farther apart. When particles are closer, the fluid becomes more viscous because they can’t move past each other easily.
How does the size of particles affect the viscosity of a fluid?
If the particles are larger in size, it becomes very difficult for them to flow past each other, causing the fluid to be more viscous.
How does strong cohesive forces between particles affect the viscosity of a fluid?
If the particles in the fluid have strong cohesive forces (attractive forces that pull them together), the fluid is more viscous because the attraction between the particles makes it difficult for them to slide past each other.
How does a high concentration of a substance affect the viscosity of a fluid?
If a high concentration of a substance is dissolved within a fluid, the fluid becomes more dense because it has more mass within the same volume. This increase in density makes it harder for the particles to all get past each other, therefore increasing the viscosity.
What variables are involved in measuring viscosity using the flow rate test?
What variables are involved in measuring viscosity using the flow rate test?delete card
What are the main variables in a viscosity experiment, and how are they classified?
The main independent variable is the type of fluid used, the dependent variable is the flow rate of the fluid, and controlled variables include the angle of the ramp, angle of pouring, temperature, and amount of fluid used.
What are some observations made during this experiment?
What types of observations can be made during this experiment? Some observations include comparing the flow rates of different fluids, measuring the time it takes for each fluid to reach the bottom of the ramp, and comparing the thickness or thinness of the fluids.
