Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.550 mol of liquid dibromoethane (C2H4Br2, P° = 127 torr) in 1.80 mol of liquid dibromopropane (C3H6Br2, P° = 173 torr).

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

it is the most commonly accepted one

може ли да зареждате повече информация, моля