1. the heat of fusion for the ice-water phase transition is 335 kj/kg at 0°c and 1 bar. the density of water is 1000 kg/m3 at these conditions, and that of ice is 915 kg/m3. develop an expression for the change of the melting temperature of ice with pressure. use this to compute the freezing point of water in denver, co where the mean atmospheric pressure is 84.6 kpa

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

)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.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.