A porpous cup is filled with H_(2) gas at the atmospheric pressure and is connected to a thin glass tube a vertical position. The second end of the tube is immersed in water below it. After some time, water rises in the glass tube. Explain giving reasons.

A porpous cup is filled with H_(2) gas at the atmospheric pressure and

1.	A porpous cup is filled with H_(2) gas at the atmospheric pressure and is connected to a thin glass tube a vertical position. The second end of the tube is immersed in water below it. After some time, water rises in the glass tube. Explain giving reasons.
Answer» Solution :Pressure is EXERTED DUE to bombardment of gaseous molecues with the WALL of CONTAINER.