Does volume effect viscosity in a liquid?

Question

Why does a small droplet of water dry quicker than a larger globule of water???

Answer 1

There is less of it. (however, more surface area = faster evaporation, there is a point at which the larger drop dries faster) Don't think it has to do with viscosity.
But, more volume = more weight = more pressure = more viscosity.

Answer 2

Evaporation of water is nothing to do with viscosity. Drying of liquid depends on the are of the liquid exposed to air. Small droplet is exposed to more aire than larger globule.
Factors influencing the rate of evaporation
Concentration of the substance evaporating in the air: If the air already has a high concentration of the substance evaporating, then the given substance will evaporate more slowly.
Concentration of other substances in the air: If the air is already saturated with other substances, it can have a lower capacity for the substance evaporating.
Flow rate of air: This is in part related to the concentration points above. If fresh air is moving over the substance all the time, then the concentration of the substance in the air is less likely to go up with time, thus encouraging faster evaporation.
Concentration of other substances in the liquid: If the liquid contains other substances (such as salts), it will have a lower capacity for evaporation. This is due to Raoult's law.
Temperature of the substance: If the substance is hotter, then evaporation will be faster.
Inter-molecular forces: The stronger the forces keeping the molecules together in the liquid state the more energy that must be input in order to evaporate them.
Surface Area: A substance which has a larger surface area will evaporate faster due to the fact that there are more surface molecules which are able to escape

Answer 3

Liquids:-
In liquids, the additional forces between molecules become important. This leads to an additional contribution to the shear stress though the exact mechanics of this are still controversial.Thus, in liquids:

Viscosity is independent of pressure (except at very high pressure); and
Viscosity tends to fall as temperature increases (for example, water viscosity goes from 1.79 cP to 0.28 cP in the temperature range from 0 °C to 100 °C); see temperature dependence of liquid viscosity for more details.
The dynamic viscosities of liquids are typically several orders of magnitude higher than dynamic viscosities of gases.

Viscosity of water:-
The viscosity of water is 8.90 × 10-4 Pa·s or 8.90 × 10-3 dyn·s/cm2at about 25 °C.
as a function of temperature: μ=A × 10^(B/(T-C))
Where A=2.414 × 10-5 N*s/m2 ; B = 247.8 Kelvin ; C = 140 Kelvin

Answer 4

I know this is a hypothetical question, but in actual fact, the air pressure inside the ball will increase as it descends into the water. Thus its volume will become increasingly smaller. This will affect the size of the mass to just obtain neutral buoyancy. As the pressure in relation to the atmosphere inside the ball before immersion is unknown, the reduction in overall volume can't be calculated.

Answer 5

Evaporation is the cause of drying and surface area plays an important role. A liquid drop is spherical when suspended freely but when in contact with a surface, it is no longer spherical and so the ratio of surface area to volume could change.

Higher the surface area, faster the drying.

Answer 6

no. take a look at the unit of viscosity.
the drying has nothing to do with viscosity. as everybody already said, drying is a function of vapor pressure. it is itself a function of pressure, temperature and surface.

Answer 7

No. Its maily effects by Temperature, Height of the viscometer arrangements.