Newtons Laws of Motion Test(2) 4/7/2021
27) The amount of Force per unit of Area is called *
3 points
Velocity
Pressure
Terminal Force
Air resistance
28) Terminal velocity is achieved when the drag force equals the force of
3 points

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

C3h8o3 - glycerol major species present when dissolved in water

)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.