Vapour pressure of chloroform `(CHCl_3)` and dichloro methane `(CH_2Cl_2)` at 298K are 200 mm and 415 mm of Hg respectively. Calculated the vapour pressure of solution prepared by mixing 24g of chloroform and 17g of dichloro methane at 298K
[At. Mass: H-1, C-12, Cl-35.5]

Vapour pressure of pure water at 298 K is 23.8mmHg. 50g of urea is dissolved in 850g of water. Calculate the vapour pressure of water for this solution and its relative lowering.

On mixing, heptane and octane form an ideal solution. At 373 K, the vapour pressures ofheptane and octane are 105 kPa and 45 kPa respectively. Vapour pressure of the solution obtained by mixing 25 g of heptane and 35 g of octane is very close to

Calculate the osmotic pressure exerted by a solution prepared by dissolving 1.5g of a polymer of molar mass 185000in 500mL of water at 37^@C (R = 0.0821 L atm K^(-1) mol^(-1)

Methanol (p^@"=90 mm Hg at 300 K") and ethanol (p^@="51 mm Hg at 300 K") form very nearly an ideal solution. The total vapour pressure of a solution obtained by mixing 23 g ethanol with 32g methanol would be

. Vapour pressure of water'at '293 K' is 17.535 'mm Hg .' Calculate the vapour pressure of water at '293 K' when '25 g' of glucose is dissolved in '450 g' of water.

The boiling point of C_6H_6, C_6H_5NH_2, CH_3OH and C_6H_5NO_2, are 80^@C, 184^@C, 65^@C and 212^@C respectively. Which has higher vapour pressure at room temperature

1.22 g of a gas measured over water at 15°C and a pressure of 775 mm of Hg Occupied 900 ml. Calculate the volume of dry gas at vapour pressure of water at 15^(@)C is 14 mm of Hg

a) The enthalpy of combustion of CH_(4(g)), C_(graphite) and H_(2(g)) at 298 K are - 890.3 kJ mol^-1 , - 393.5 kJ mol^-1 and -285.8 kJ mol^-1 respectively. Calculate the enthalpy of formation of CH_(4(g)).

Benzene and naphthalene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and naphthalene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. What will be themole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of naphthalene?