Some of the following properties of liquids arise because of the molecular interaction and thermal energy:
I: vapour pressure;
II: surface tension
III: viscosity:
They are:
I, II
I, III
II, III
I, II, III
Molecular interactions between molecules is in order:
Solid < liquid < gas
Solid < gas < liquid
Gas < liquid < solid
Liquid < solid < gas
When one end of the fine capillary which is open at both ends is immersed in water, would completely fill in. It is due to:
Surface tension which pulls the water into the capillary
The surface tension which is great enough to overcome the attraction of gravity in water in fine capillary
Both (a) and (b)
None of the above
Some of the following statements are correct:
I: The water drop in vacuum is perfectly spherical.
II: The shape of water drop is distorted due to action of gravity.
III: soaps and detergents drastically decrease the surface tension of water.
IV: As temperature increases, surface tension also increases and becomes maximum at critical temperature.
Select correct statements:
I, II, III, IV
II, III, IV
I,II, III
I, III
Some of the following decrease surface tension of a liquid
I: increase in temperature of the liquid
II: mixing of detergent in the liquid
III: decrease in temperature
These can be:
II, III
I, II
II only
I only
One of the following properties increase with rise in temperature:
Viscosity
Surface tension
Vapour pressure
Density
Some of the following properties are transport properties:
I: viscosity
II: surface tension
III: thermal conductance
IV: diffusion
Select the correct alternate of transport properties:
I, II, III, IV
I, III, IV
I, III
III, IV