Please answer this The compound CO2(s) sublimes readily at 25°C. Which properties are usually associated with a compound that undergoes this kind of change?

1.high vapor pressure and high intermolecular attractions

2.high vapor pressure and low intermolecular attractions

3.low vapor pressure and high intermolecular attractions

4.low vapor pressure and low intermolecular attractions

)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.