Explain why
A drop of liquid under no external forces is always spherical in shape.

For which property of the liquid the shape of a liquid drop is spherical ?

Boiling of liquid decreaseds with lowering of external pressure-why?

Why liquid has no definite shape?

Explain why liquid ammonia is used as a refrigerant.

(i) For which property of the liquid the shape of a liquid drop is spherical? (ii) In a 10 volumetric flask contains 1 g He and 6.4 g of O_(2) at 27^(@)C temperature. If the total pressure of the mixture is 1.107 atm, then what is the partial pressure of He and O_(2) ?

Why the falling liquid drop is spherical in nature?