The density of water at `4^0C` is supposed to be `1000 kg m^(-3)`. It is same at the sea level and at a high altitude?

Calculate the molarity of water if its density is 1000 kg m^(-3)

The density of the atmosphere at sea level is 1.29kg//m^(3) . Assume that it does not change with altitude . Then how high would the atmosphere extended ? (g=9.8ms^(-2))

The density of the atmosphere ats ea level is 1.31kg//m^(3) . Assume that it does not change with altitude . The how high would the atmosphere extend ? (g=10ms^(-2))

The density of water is 1000 kg m^(-3) . The density of water vapour at 100^(@)C and 1 atm pressure is 0.6 kg m^(-3) . The volume of a molecule multiplied by the total number gives ,what is called, molecular volume. Estimate the ratio (or fraction) of the molecular volume to the total volume occupied by the water vapour under the above conditions of temperature and pressure.

If the density of air at NTP is 1.293kg//m^(3) and gamma=1.41 , then the velocity of sound in air at NTP is :

Estimate the average mass density of a sodium atom assuming its size to be about 2.5Å. (Use the known values of Avagardo's number and the atomic mass of sodium). Compare it with the mass density of sodium in its crystalline phase : 970 kg m^(-3) . Are the two densities of the same order of magnitude ? If so, why ?

Radius of a glass capillary is 0.5 mm . Find the height of the column of water when it is held vertical in water . The density of water is 10^(3)kg m^(-3) and the the angle of contact between glass and water is 0^(@),g=9.8ms^(-2) and the surface tension of water T=0.0727Nm^(-1) .