Home
Class 11
PHYSICS
Find the excess pressure inside a mercur...

Find the excess pressure inside a mercury drop of radius 2.0 mm. The surface tension oif mercury `0.464Nm^-1`.

Text Solution

Verified by Experts

The excess pressure inside the drop is
P_2-P_1=2S/R`
`=(2xx0.464Nm^-1)/(2.0xx10^-3m)=464Nm^-2`
Promotional Banner

Similar Questions

Explore conceptually related problems

What is the excess pressure inside a bubble of soap solution of radius 5.00 mm , given that the surface of soap solution at the temperature (20^(@)C) is 2.50xx10^(-2)Nm^(-1) ? If an air bubble of the same dimension were formed at depth of 40.0 cm inside a container containing the soap solution (of relative density 1.20) , what would be the pressure is 1.01xx10^(5)Pa) .

What is the pressure inside the drop of mercury of radius 3.00 mm at room temperature (20"^(@)C) is 4.65xx10^(-1)Nm^(-1) . The atmospheric pressure is 1.01xx10^(5) Pa. Also give excess pressure inside the drop.

Two mercury droplets of radii 0.1 cm . And 0.2 cm . Collapse into one single drop .What amount of energy is released ? The surface tension of mercury T=435.5xx10^(-3)Nm^(-1)

Calculate the excess pressure withing a bubble of air of radius 0.1 mm in water. If te bubble had been formed 10 cm below the water surface on a day when the atmospheric pressure was 1.013xx10^(5)Pa then what would have been the total pressure inside the bubble? surface tension of water =73xx10^(-3)N//m

Calculate the height to which water will rise in a capillary tube of diameter 1xx10^(-3) m [given surface tension of water is 0.072Nm^(-1) angle of contact is 0^(@),g=9.8ms^(-2) and density of water =1000kgm^(-3) ]

The sap in trees , which consists mainly of water in summer , rises in a system of capillaries of radius r=2.5xx10^(-5)m .The surface tension of sap is T=7.28xx10^(-2)Nm^(-1) and the angle of contact is 0^(@) .Does surface tension alone account for the supply of water to the top of all trees ?

Two droplets each radius r of mercury merge and form a bigger drop . If surface tension of mercury is T.Then what will be the surface energy ?

Find the difference of air pressure (in N-m^(-2) ) between the inside and outside of a soap bubble 5 mm in diameter, if the surface tension is 1.6 N-m^(-1) :-