The relative density of mercury is ?

When a mercury barometer is taken to a place at a height of 25 m above the sea level it shows a pressure difference of 2.5mm with respect to the pressure at the surface of the sea. If the relative density of mercury is 13.6, find the average density of air near sea level

The realtive density of mercury is 13.6. Find the ratio of the mass of mercury of a certain volume to that of water having ten times the volume of mercury.

The temperature of an air bubble while rising from bottom to surface of a lake remains constant but its diameter is doubled if the pressure on the surface is equal to h meter of mercury column and relative density of mercury is then the depth of lake in metre is -

A U-tube of uniform cross-section holds 1 kg of pure mercury and 0.2 kg of water in equilibrium. The diameter of cross-section is 1.2 cm. Relative density of mercury is 13.6. If the system in equilibrium is slightly disturbed, the period of oscillation of the liquid column in the tube will be (take g=10ms^(-2) )

Two communicating vessels contain mercury. The diameter of one vessel in n times larger then the diameter of the other. A column of water of height h is poured into the left vessel. The mercury level will rise in the right hand vessel (s = relative density of mercury and rho = density of water) by

Two cylindrcal vesels placed on a horizontal table contain water and mercury respectively up to the same height. There is a small hole in the walls of each of the vessels at half the height of liquids in the vessels. Find out the ratio of the velocities of efflux of water and mercury from the holes. Whcih of the two jets of liquid will fall at a greater distance on the table from the vessel? Relative density of mercury with respect to water = 13.6

A cylinder of iron floats vertically and fully immersed in a vessel containing mercury and water. Find the ratio of the length of the cylinder immersed in water to that immersed in mercury. (Relative density of mercury = 13.6 and that of iron = 7.78)

A cube floating on mercry has 1/4 of its volume will remain immresed in mercury? (Relative density of mercury =13.6)

A mercury in glass thermometer has a stem of internal diameter 0.06 cm and contains 43 g of mercury. The mercury thread expands by 10 cm when the temperature changes from 0^@C to 50^@C . Find the coefficient of cubical expansion of mercury. Relative density of mercury =13.6 and alpha_("glass")=9xx10^(-6)//K .

A vessel of water is put in a dry, sealed room of volume 50m^(3) at a temperature 27^(@)C . The saturated vapour pressure of water at 27^(@)C is 40mm of mercury. How much water will evaporate before the water is in equilibrium with its vapour? (Relative density of mercury =13.6, g=9.8ms^(-2) and =8.3Jmol^(-1)K^(-1) )