Explain, why is it difficult for a fireman to hold a hose, which ejects large amounts of water at a high velocity.

Why is it difficult to hold a school bag having a strap made of a thin and strong string?

Explain why the solubility of amines in water decrease on increasing molar mass.

Explain why (a) The angle of contact of mercury with glass is QBtuse, while that of water with glass is acutue

Explain why does drinking water kept in an earthern pot cool down ?

Explain why Water with detergent dissolved in it should have small angles of contact.

Explain why at high altitude,water boils below 100?

Explain why When we try to close a watertap with our fingers, fast jets of water gush through the openings between our fingers

A spherical glass vessel has a cylindrical neck 8 cm long,2 cm in diameter,the diameter of the spherical part is 8.5cm.By measuring the amount of water it holds,a child finds its volume to be 345cm^3 .Check whether she is correct,taking the above as the inside measurements,and pi=3.14 .

Explain why rain drops are spherical while the surface of water in a pond is flat.

Explain why: Alcohols are more soluble in water compared to the ethers.