Argon crystallizes in FCC arrangement and density of solid and liquid argon is 3/7 and 3gm/cc respectively. Find percentage of empty space in liquid Ar.

The densities of ice and water at 0^(@)C and 1 bar are 0.96 and 0.99 gm cm^(-3) respectively. If the percentage of occupied space in ice is x, the the percentage of empty space in water is:

Three immiscibles transparent liquids with erefractive indices 3/2,4/3 and 6/5 are arranged one on top of another. The depth of the liquid are 3 cm, 4 cm and 6 cm respectively. The apparent depth of the vessel is

A solid ball is immersed in a liquid. The coefficient of volume expansion of ball and liquid are 3 xx 10^(-6) per/C and 9xx 10^(-6) per ,^(@) C respectively. Find the percentage change in upthrust when the temperature is increased by 25^(@)C

The coordination number of AlCl_(3) in their solid, solid liquid and gaseous state is respectively :

In the arrangement as shown, A and B arc two cylinders each of length L and density d_1 and d_(2)(d_(1)ltd_(2)) respectively. They are joined together and submerged in the liquid of density d with length L//2 of A outside the liquid. If the difference in densities of two cylinders is equal to density of the liquid, find d_(1) .

Consider two solid spheres P and Q each of density 8gm cm^-3 and diameters 1cm and 0.5cm, respectively. Sphere P is dropped into a liquid of density 0.8gm cm^-3 and viscosity eta=3 poiseulles. Sphere Q is dropped into a liquid of density 1.6gmcm^-3 and viscosity eta=2 poiseulles. The ratio of the terminal velocities of P and Q is

In Newton's experiment of cooling, the water equivalent of two similar calorimeters is 10 gm each. They are filled with 350 gm of water and 300 gm of a liquid (equal volumes) separately. The time taken by water and liquid to cool from 70^(@)C to 60^(@)C is 3 min and 95 sec respectively. The specific heat of the liquid will b

In a capillary tube, liquid rises to a height of 4 cm. In the same capillary tube, mercury falls to a depth of 3 cm. The density of liquid and mercury are 1.5 g/cc and 13.6 g/cc. Then angles of contact of liquid and mercury with the same capillary tubes are 0^(@) and 140^(@) , respectively. What is the ratio of magnitudes of approximate surface tension of mercury and the liquid?