Vanderwaal's constant in litre atmosphere per mole for carbon dioxide are a = 3.6 and b = `4.28 xx 10^(-2)`. Calculate the critical temperature and critical volume of the gas. R = 0.0820 lit atm `K^(-1). Mol^(-1)`

Vanderwaal's constants for hydrogen chloride gas are a = 3.67 atm lit^(-2) and b = 40.8 ml mol^(-1) . Find the critical temperature and critical pressure of the gas.

200 cm^(3) of an aqueous solution of a protein contains 1.26 g of protein. The osmotic pressure of such a solution at 300 K is found to be 2.57 xx 10^(-3) bar. Calculate the molar mass of the protein. (R = 0.083 L bar "mol"^(-1)K^(-1) )

Calculate the total pressure in a 10 L cylinder which contains 0.4 g of helium, 1.6 g of oxygen and 1.4 g of nitrogen at 27^(@) C. Also calculate the partial pressures of He gas in the cylinder. Assume Ideal behaviour for gases. R = 0.082 L atm k^(-1) mol^(-1)

The velocity constant of a reaction at 290 K was found to be 3.2xx10^(-3)s^(-1) . When the temperature is raised to 310 K, it will be about

In aqueous solution the ionization constants for carbonic acid are : K_(1)=4.2xx10^(-7) and K_(2)=4.8xx10^(-11) Select the correct statement for a saturated 0.034 M solution of carbonic acid.

The solution containing 10 g of an organic compound per litre showed an osmotic pressure of 1.18 atm at 0^(@)C . Calculate the molecular mass of the compound "(R=0.0821 litre atm per degree per mol)"

The rate constant of a first order reaction at 300 K and 310 K are respectively 1.2 xx 10^(3) s^(-1) and 2.4 xx 10^(3) s^(-1) . Calculate the energy of activation. (R = 8.314 J K^(-1) mol^(-1))