For a real gas (mol. Mass= 30 ) if density at critical point is`0.40 g//cm^(3)` and its `T_(c ) = ( 2 xx 10^(5))/( 821) `K, then calculate Vander Waal's constant a( in atm `L^(2) mol^(-2))`.

For a real gas (mol.mass =60) if density at critical point is 0.80g//cm^(-3) and its T_(c)=(4xx10^(5))/(821)K, then van der Waals' constant a ( in atm L^(2)mol^(-2) ) is

The third virial coefficient of a real gas 2xx10^(-2) (L//"mol")^(2) . The value of van der Waals' constant 'b' is:

For one mole of a van der Waals gas when b =0 and T =30 K the PV vs1//V plot is shown below The value of the van Waals constant a ("atm litre"^(2) mol^(-2)) is .

For one mole of a van der Waals' gas when b=0 and T=300K , the pV vs 1//V plot is shown below. The value of the vander Waals' constant a (atm L mol^(-2) )

1 mole of a ciatomic gas present in 10 L vessel at certain temperature exert a pressure of 0.96 atm. Under similar conditions an ideal gas exerted 1.0 atm pressure. If volume of gas molecule is negligible, then find the value of van der Waals' constant ''a'' (in atm L^(2)//mol^(2) ).

Rate constant k = 1.2 xx 10^(3) mol^(-1) L s^(-1) and E_(a) = 2.0 xx 10^(2) kJ mol^(-1) . When T rarr oo :

The critical constant of a gas are as follows : P_(c )=45.6" atm", V_(c )=0.0987" L " mol"^(-1) and T_(c )=190.6" K " . Calculate the van der Waals constants of the gas. Also calculate the radius of the gas molecule assuming it to be spherical.