The critical density of the gas `CO_(2)` is `0.44 g cm^(-3)` at a certain temperature. If r is the radius of the molecules, `r^(3)` in `cm^(3)` is approximately. `(N` is Avogadro number)

IF the density of hydrogen gas is 0.00009 g.cm^-3 determine the value of rms speed of hydrogen molecules at STP.

Density of water is ...… ("10 g cm"^(-3)//"1 g cm"^(-3)) .

The number of molecules in 44.8 cm^3 of xenon gas at STP is

If the density of water is 1 g cm^(-3) then the volume occupied by one molecule of water is approximately

If the density of water is 1 g cm^(-3) then the volume occupied by one molecule of water is approximately

Critical density of a gas having molecular mass 39 g mol^(-1) is 0.1 g cm^(3-) . Its critical volume in L mol^(-1) is

At 100^(@)C and 1 atm, if the density of the liquid water is 1.0 g cm^(-3) and that of water vapour is 0.0006 g cm^(-3) , then the volume occupied by water molecules in 1 L steam at this temperature is

At 100^(@)C and 1 atm , if the density of the liquid water is 1.0 g cm^(-3) and that of water vapour is 0.0006 g cm^(-3) , then the volume occupied by water molecules in 1 L of steam at this temperature is