Table of Contents
- 1 Which has a higher viscosity a fast flowing liquid or a slow moving liquid?
- 2 What happens to the flow rate and viscosity if you cool down a liquid?
- 3 What affects a liquids viscosity?
- 4 How do liquid with high viscosity differ from liquids with a low viscosity?
- 5 What increases the viscosity of a liquid?
- 6 Does higher viscosity mean slower flow rate?
Which has a higher viscosity a fast flowing liquid or a slow moving liquid?
A liquid that flows very slowly is said to be more viscous than a liquid that flows easily and quickly. A substance with low viscosity is considered to be thinner than a substance with higher viscosity, which is usually thought of as being thicker.
What happens to the flow rate and viscosity if you cool down a liquid?
Cooling a liquid takes energy away. The particles slow down and they begin to collide, increasing the resistance to flow and internal friction. Cooling a liquid increases the liquid’s viscosity. The opposite is true of a gas: the viscosity of a gas decreases as it cooled.
What makes a liquid more or less viscous?
Viscosity is governed by the strength of intermolecular forces and especially by the shapes of the molecules of a liquid. Liquids whose molecules are polar or can form hydrogen bonds are usually more viscous than similar nonpolar substances. Liquids containing long molecules are invariably very viscous.
What affects a liquids viscosity?
Viscosity is resistance to flow. For liquids, typically the larger the intermolecular forces (IMF) the higher the viscosity. The other factors that affect viscosity are temperature and the shape of the molecule.
How do liquid with high viscosity differ from liquids with a low viscosity?
Fluids with low viscosity have a low resistance and shear easily and the molecules flow quickly; high viscosity fluids move sluggishly and resist deformation. Some liquids, like pitch, glass and peanut butter, have such high viscosity they behave like solids.
Why does viscosity of liquids decrease with temperature?
When a liquid is heated, the kinetic energy of its molecules increases and the intermolecular attraction becomes weaker. Hence, the viscosity of a liquid decreases with increase in its temperature.
What increases the viscosity of a liquid?
Viscosity generally increases as the temperature decreases. The viscosity of a liquid is related to the ease with which the molecules can move with respect to one another. Thus the viscosity of a liquid depends on the: strength of attractive forces between molecules, which depend on their composition, size, and shape.
Does higher viscosity mean slower flow rate?
Viscosity is the measure of resistance of a fluid to flow. A fluid that is highly viscous has a high resistance (like having more friction) and flows slower than a low-viscosity fluid.