What is the relationship between viscosity and movement of liquids?
Viscosity is a measure of a fluid’s resistance to flow. A fluidwith large viscosity resists motion because its molecular makeup gives it a lot of internal friction. A fluid with low viscosity flows easily because its molecular makeup results in very little friction when it is in motion.
What is the relationship between temperature and viscosity of water?
In general, the viscosity of a simple liquid decreases with increasing temperature. As temperature increases, the average speed of the molecules in a liquid increases and the amount of time they spend “in contact” with their nearest neighbors decreases.
What is the relationship between viscosity and velocity?
A simple formula representing this relationship is: (1-1) where v equals velocity, η equals viscosity, and r is the hydrodynamic radius of the molecule. Thus, the force sensed by a molecule increases as the velocity, viscosity, or size of the molecule increases.
What determines thermal conductivity?
The thermal conductivity is not always constant. The main factors affected the thermal conductivity are the density of material, moisture of material and ambient temperature. With increasing density, moisture and temperature the thermal conductivity increases too.
What is the relationship between thermal conductivity and thermal resistance?
Thermal resistance refers to the ability of a system of particular configuration to resist heat transfer in any mode whereas thermal conductivity is a property of a material by virtue of which it conducts heat. The thermal resistance of a material is the inverse of the thermal conductivity.
How does viscosity affect electrical conductivity?
Decreasing the viscosity has a more pronounced effect on DOD performance than does increasing the electrical conductivity. Specifically, fc increases from 10 to 40 Hz upon halving the viscosity. In contrast, increasing electrical conductivity by a factor of 330 from 50 to 16 500 μS/cm increases fc from 10 to 30 Hz.
What is the relation between viscosity and rise in temperature?
The gas viscosity will increase with temperature. According to the kinetic theory of gases, viscosity should be proportional to the square root of the absolute temperature, in practice, it increases more rapidly.
What is the relationship between viscosity and temperature quizlet?
As temperature increases, viscosity decreases; they are inversely related. The same attractive forces that cause surface molecules to be difficult to separate (high surface tension) cause molecules elsewhere in the sample to resist movement relative to each other (high viscosity).
How does the coefficient of viscosity of fluid depend on temperature?
The coefficient of viscosity of fluids will be decreased as the temperature increases, while it is inverse in the case of gases. While the coefficient of viscosity of gases will increase with the increase in temperature. The increase in temperature for the fluid deliberate the bonds between molecules.