If a balloon containing 357.5 L of gas at 37.00ºC and 99.00 kPa rises to an altitude where the pressure is 47.50 kPa and the temperature is 17.00ºC, what would the volume of the balloon under these new conditions be?

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.